Steve Rogers learns to be less naive
When he wakes up, after he gets used to the fact that he's living in a time pretty far removed from his own, Steve figures that the world will be a different, better place. They hadn't gone to war for nothing, after all.
Then he learns that they're still fighting an enemy, in a slightly different place, but it's still war, even if they're not calling it that. And that so many people are still at least as badly off as they were before. He doesn't understand how he could be given money supposedly earned while he was frozen, so he anonymously donates it wherever he can.
He shares all of this one day with Bruce, in a quiet moment when they're the only two up, and Bruce just laughs sadly. "The world is still a pretty fucked-up place, Cap," he says. "Every time you think it's going to get better, it doesn't."
Steve reflects on this for a while, and in the end determines that New York, at least, is still more or less the same place, only with more neon lights and entitled college graduates. He has a feeling that the rest of the world looks like this, too.
He remembered when he thought that being Captain America would make a difference. When even the war-torn places he'd been were hopeful. When he'd made a promise to a clever, beautiful woman. When the world had seemed to have so much potential.
Now, he's not so sure about that.