Yes indeed, and to paraphrase Wanda, where do you suppose he gets that from? Could it perhaps have anything at all to do with unresolved emotional issues surrounding his relationships with his parents, compounded by their abrupt exit off this mortal coil—again, no pun intended—which robbed him of the opportunity to resolve them directly, thus leading him to project (or deflect) these emotions elsewhere? Personally, I think it quite possible and plausible.
As I see it, this very parental absence (which preexisted his parents' actual death, though that event made it all the more concrete and traumatic and permanent) underlies Tony's tendency toward tacit reliance on the diligent care and indulgence of others while simultaneously projecting a buffer of casual indifference, determined flippancy, and even outright patronizing disdain toward those who provide it. He resents his parents for being absent, resents himself for his need of them, and resents others for taking their place in fulfilling that need.
Although Tony comes to realize this of himself little by little (and in Pepper's case, it would seem from Civil War to have been too little, and too late, and too bad, as he seemed to be trying pretty hard there in IM3) as the films go on, it remains an unresolved issue for him. His attempts to resolve it also manifest themselves in his overcompensating by trying to take into his own hands matters which transcend his capacity to deal with them alone, to bite off more than he can chew. Ultron was perhaps the, ahem, ultimate example of that.