To be fair Ruth is not comparably to Marie in character roles. Ruth is Jesse Pinkman. Compare those two.
Marty is Walter
Wendy is Skylar
Ruth is Jesse
Jonah is Walt Jr
Marty is based on Marcus Agrippa from ancient Rome. A man who started out of humble means and no social standing and no powerful family legacy who was known as a logical tactician and administrator.
Wendy is based on Julia The Elder, who was Octavian's daughter. She is the gateway to legitimacy for Marty in terms of social status, much in the way JTE was for Agrippa.
Darlene is based on Livia Servilla, the jealous backroom double dealer who sows chaos.
Ruth is a combination of Livia and Fulvia ( Mark Antony's former Roman wife) Fulvia had the distinction of constantly having the powerful men in her life die off.
Jonah is Lucius Caesar and Charlotte is Julia The Younger.
Thematically Ozark is about the lack of self agency/self determination in your own fate. That social hierarchies are built upon dynastic principles and blood right. Marty elevated from poor beginnings and marrying Wendy was validation of his perception that he ascending into a higher tier into society. And that his children would be pulled up with him by that association. You'll see the same dynamic with Navarro and Wendy. There is a constant reminder that Wendy ( moreso than Marty) is the white public acceptable face of legitimacy. Navarro's nephew Javi is a psychopath but sees the danger in the Byrdes and what they represent. They sell the seduction of a world that they don't even get to inhabit into themselves.
Wendy didn't step down and take a "downgrade" in marrying Marty, she was clearly not fit for a real station into a higher tier of society. She can only operate by blackmail and bribing and murder. In essence, Wendy's social standing is a fraud because she is a fraud.
And what happened to Navarro? His attempt at being legitimate only made everything worse for him and his family. He didn't just want out, he wanted out and UPWARDS. Mostly for his children. He didn't want that blood from a drug name smearing their future legacy. But what he failed to understand is, in this universe and this world building, there is no real self determination.
Marty is so talented, as the FBI accountant Maya Miller points out, that he could do things no one else could do. If he was born into higher station, he could be powerful and be in a position to be powerful without all the bloodshed and criminal behavior. Ruth is capable and practical, Marty carries great affection for her because of how she makes him feel about himself. Unlike his own children, Ruth takes nothing for granted. Everything is a fight and she's willing to fight for it. She's not cultured and she has no sense of what high society calls "class" but she's fearless and she desperately wanted to change the destiny of her cousin Wyatt. She wanted him to go to college and do well in school so he could escape. She is trapped by legacy built around her. This is why there are the extend arguments between Ruth and Frank Jr about the appearance of being "fake" to a higher status of society around them. They aren't accepted, they are novelties in the way Tony Soprano was a novelty to Cusamano and his golf buddies.
Navarro had Helen Pierce killed. In part because she was sloppy and took massive risks clearly behind his back, but also because the "betrayal" was really a privileged white woman from a higher social class was taking actions that said she knew better and was smarter and should be the one making the real decisions. For Navarro, all he can do is threaten the Byrdes with death. But they can live out in the open. They have status and power in the open. While he has to hide like a rat in a cage waiting to be killed.
Charlotte loses her virginity like she was just another piece of poor white trash for a passerby and Wyatt says you are one of us. One of Frank Cosgrove's men tries to sleep with Erin, Helen's daughter, because she's from a different cut of cloth. She's legitimacy.
There's a reason some people work two jobs to get their kids into a better school. Where the other children and their parents are wealthier and have more opportunity and access to a higher social tier. While marriage is a gateway upwards, it usually has some kind of hidden deep diminishing returns. There's no way to cheat your station prescribed to you at birth.
Marty will always be the child without any coins to put into the arcade game. Ruth will always be the abandoned foul mouthed girl who lives in a trailer. Navarro will always be someone that a person like Wilkes will see as only good enough to clean out his garden.
Marcus Agrippa was one of the most accomplished men in all of recorded human history. But nothing he could do could escape the issue that in his society and to the world around him, he didn't have "one drop of good blood in him"
Octavian was told directly that Agrippa was too powerful and too beloved by the rank and file men in the military. If he didn't make him a part of his actual family, then the only choice would be to murder him as a threat to his power.
In every instance of Marty's criminal life, he is pulled into some aspect of a criminal family because he is too valuable to be killed. But the danger is always there. Jacob, Del, Cade, Helen, Wilkes, Cosgrove, everyone understood the danger Marty presented as a threat to their existing power.
Ben and Wyatt perished as a consequence of their "attachment" to a life that they could not hold onto and a life that could never really have. Both deviated from their "station" and their "tier" but unlike Marty, had nothing to give back in value to the world to justify their survival. Both started out as characters who wanted to be happy. Wyatt wanted to be left alone and Ben just wanted to laugh and see the day to day beauty of the world. When they didn't buck their place in society, they were spared the violence. When they fought for something different without leverage, they died.
Ozark is nothing like Breaking Bad. Ozark is a discussion of how one cannot control their fate because none of us truly have free will. Breaking Bad is a discussion of tragedy that comes from a lack of authenticity to one's true nature.