I get that the All-Star rosters are not picked from VORP rankings, but here's how valuable each guy has been so far this season:
EAST
C: Embiid - 4.1, Allen - 1.9, Porzingas - 1.8, Horford - 1.5, Adebayo - 1.3, Hartenstein - 1.3, Claxton - 1.2, Lopez - 1.2, Bidatze - 1.0, MWagner - 0.9
PF: Giannis - 4.5, Tatum - 3.0, Butler - 1.8, Siakem - 1.6, Randle - 1.5, Banchero - 1.4, Harris - 1.3, Love - 1.0, CJohnson - 0.8, Mobley - 0.8
SF: DeRozan - 1.4, FWagner - 1.3, JBrown - 1.1, JJohnson - 0.9, Bridges - 0.8, Middleton - 0.8, Nesmith - 0.8, Anunoby - 0.7, Hauser - 0.7, Hield - 0.7
SG: Mitchell - 3.2, Barnes - 2.6, DWhite - 2.1, DiVincenzo - 1.9, Caruso - 1.2, Quickley - 1.0, Rozier - 1.0, Murray - 1.0, Bogdonovic - 0.9, LeVert - 0.6
PG: Haliburton - 3.4, Brunson - 3.0, Maxey - 2.2, Young - 2.2, McCollum - 1.8, Lillard - 1.7, Holiday - 1.3, Ball - 0.9, CWhite - 0.9
WEST
C: Jokic - 6.9, Sabonis - 3.5, Davis - 3.1, Sengun - 2.8, Holmgren - 2.3, Gobert - 1.6, Wembanyama - 1.5, Valanciunas - 1.4, Olynyk - 1.2, Reid - 1.0
PF: KD - 3.2, LBJ - 3.1, Markkanen - 2.3, KAT - 2.0, George - 1.8, Zion - 1.7, JWilliams - 1.4, Gordon - 0.9, KAnderson - 0.8, Grant - 0.8
SF: Kawhi - 3.4, Ingram - 1.5, HJones - 0.8, Thybulle - 0.6, Porter - 0.5, AThompson - 0.4, Whitmore - 0.4, Konchar - 0.3, Murphy - 0.3, KMurray - 0.3
SG: Edwards - 2.1, Bane - 1.8, Kyrie - 1.8, Sexton - 1.3, GAllen - 1.0, Monk - 0.9, Giddey - 0.8, Reaves - 0.8, Joe - 0.7, Simons - 0.7
PG: SGA - 5.3, Doncic - 4.5, Curry - 2.7, Harden - 2.7, VanVleet - 2.3, Booker - 1.9, Murray - 1.8, Conley - 1.7, Fox - 1.5, Brogdon - 1.1
Off of that, the biggest snubs in the East were Barnes (2.6), Young (2.2), and DWhite (2.1). In the West, Sabonis (3.5), Sengun (2.8), Harden (2.7), Holmgren (2.3), Markennan (2.3), and VanVleet (2.3). Those were all the players with scores of 2.0 or better that didn't make the team (although someone might be picked as a fill-in for a guy that's injured).