Cost of Freedom - Howard Stark
Do y’all think that Tony’s gonna give a fuck about HYDRA being exposed as the murderers of Tony and Maria Stark? It’s both comic and MCU canon that Tony had a terrible relationship with this parents (in the comics Howard was physically abusive and quite loveless towards Tony, but in the movies he’s portrayed more as a busybody rich douchebag who never made time for his son and neglected him) I can seriously imagine Tony looking at Hill and being like “So?” when he finds out. I think that would make for better drama than having him suddenly go all vengeful on HYDRA or some shit like that. All the other Avengers and Rhodey and Pepper asking Tony what he’s gonna do, and Tony’s response being pretty much, “Not a muthafuckin’ thing.”
I can’t see that. After Iron Man 2, tony learned something about his dad he didn’t know. His dad really did care. I don’t think Tony is going to put “Worlds Greatest Dad” balloon at the grave, but I still think he will care.
And once again, the focus is on Howard. We get even less of her in the MCU, but 616!Tony adored his mother. Maria matters, guys. There were two people who died in that crash and while Tony’s relationship with his father is more fraught, Maria Collins Carbonell Stark was part of his life, was a person in her own right, and is no less deserving of being mourned for her death than Howard.
Tony’s going to care about both of their murders. Not only did it rob him of his chance of maybe, just maybe building a decent relationship with his dad*, but it ripped one of the few people who gave a damn about him away.
*Kind of doubtful. Not only are Howard and Tony a bit too much alike for them to get along, but Tony was shaping up to be obviously brighter and better than Howard from an early age and I don’t think Howard ever forgave his son for that. It sadly manifested as erratic praise cycling with emotional and verbal abuse.
Anyone who thinks that family relationships boil down to something as simple as a hatred so deep as to result in indifference to the idea that one’s parents’ accident and one’s own early orphaning—a formative life experience— was actually the result of murder … well, I guess that’s possible, but it seems highly unlikely to me, given MCU Tony’s canon discussions of his father. Look, you may not like MCU Tony, or you might find him less sympathetic than other characters in the MCU or other iterations of Tony Stark in the comics ‘verses, but the way Tony talks about Howard to Fury in IM2 does not suggest indifference, but rather the response of a rejected and still-wounded child. The way he responds with wry wonder with the line about how long his father has been dead but ‘is still taking [him] to school’ does not suggest a man with uncomplicated feelings of either hatred or indifference toward Howard. And yes, his mother matters too, even if the movies have been crap in representing her. How could he not care that their chances to know each other were taken away, that perhaps things between him and his father might have changed while his father was still alive and not decades after his death? There’s a very good chance the MCU won’t really address it in any real way, but that doesn’t mean that it’s something that wouldn’t be significant to the character as represented so far.
tl;dr: ambivalence is a thing, and I think it would be unrealistic to expect anyone not to react emotionally to finding out that their orphaning was the result of deliberate murder, rather than a random stroke of fate.