Not necessarilly. They could very easilly be a victim of propaganda; they don't have to be a benefactor of capitalism in order to believe in incrementalism (which keeps capitalism as the main economic force).

Neoliberalism drilled deep into American consciousness a while ago.

Temporarily embarassed millionaires aren't your enemy unless they choose to believe AFTER they consciously observe how fucked up the mindset is.

Before that, they could easily just be ignorant. It's not like US schools teach how fucked up and skewed it all is. They just say, "yep, this is how it works, and that's how it works and why is the history of the stock market and yep we have it now!".

They are presented it as if it's not bad, so unless people get burned, they don't think about it. "Well I'm not that bad off and I'm not that special (despite having the embarassed millionairre's mindset) so everyone else must only be whining."

You are feeding the exact same ignorance from the other side. Stop it.