There is very little, if any, direct link between player salaries and ticket prices (or beer prices, hot dog prices, etc). The bottom line is that an NFL team will charge whatever people are willing to pay for those products, regardless of what level their team salaries are.
If I make widgets for a living and my market research shows me that people are willing to pay $29.99 for a widget, that's what I'm going to charge. It doesn't matter if it costs me $10 or $0.10 to make the widget, I'm charging what the market will bare.
Even the quality of the on field NFL product has very little to do with how much a ticket costs. Income levels for your fan base have more to do with things then quality of the product, in most cases. If a team believes that they will still sell out every home game by charging an average of $50 a ticket, what incentive do they have to only charge $25?
That said, I've also been a proponent of scrapping the draft, like some others here. In my opinion, rookies should enter the league as free agents, like any other player. The market will determine what that player is worth and teams won't have to feel the pressure to sign high draft picks to big money contracts for fear of losing face with their fans.
Still, assuming the draft is sticking around, I really don't see what the major problem is. There are maybe 15 players a year that get very large contracts. Some of them live up to their contracts, so there really should be no problem there. The discussion surrounds making major changes to the system because of a few busts every year, which seems kinda silly to me. If teams don't want to pay for the contract they are well aware they will have to pay at their draft slot, then just trade the pick.
I don't really buy the "unproven player" argument, either. "Proven" vets have crappy years all the time. There are good and bad contracts all across the board, from rookies to 15 year vets and from franchise QBs to backup kickers. People act like a "proven" player is somehow more likely to live up to his contract, which just isn't the case at all. There are busts at every level. Players that appear "proven" somehow end up riding the pine. I'm not saying experience means nothing, I'm just saying that calling a player "proven" is like saying that you *know* the next hamburger you eat will be delicious because all of your hamburger experiences so far have been wonderful. Past performance is not always indicative of future performance.
Personally, I think this whole thing is a negotiating ploy by the NFL. They are trying to put some pressure on the Player's Union by throwing a polarizing issue out there. I think the NFL believes that the PU is the weakest it's been in a very long time. They don't have a leader that everyone stands behind. The PU just isn't that unified at the moment. I think the NFL might actually believe that they can further weaken the PU if they keep spinning issues that will further divide players.