Tony had a hand in upgrading multiple members of the original Avengers lineup and provides the financial backing that they need to operate at all.
tony's that guy that no one actually enjoys hanging out with but put up with him anyways because he gets bottle service at the club
Tony is the only one with legit friends though.. Happy put his life on the line for dude and Tony went to war because of it
Banner and tony just hang out, with banner trusting tony enough to help build Veronica
Rhodey always had Tony's back
And he actually empowers the people around him, see him making pepper the head of a Fortune 500 company.. Promoting happy.. I'm sure helping Rhodey move up the ranks.. Hell, outfitting cap and the new avengers with a whole facility even though they had disagreements
Meanwhile cap got issues letting go, first Peggy and now Bucky.. Ain't tony fault cap can't appreciate the complexities of the world and it all just ain't shield/avengers/hydra