Sorry to say, NATO membership is just the carrot on the stick that the US uses to lead Ukraine around.
Do you really believe the US considers Ukraine a “true ally”? All the evidence shows that Ukraine is just another useful tool to weaken Russia. US Senators admit this reality from the Senate floor.
Not everyone wants this conflict to end, some are getting very rich.
I think the “temporarily embarrassed millionaire” idea is overstated, most people I interact with have a somewhat negative outlook on the economy and their future wealth.
I think the real issue is that no viable alternative is presented to most people.
The alternatives presented are Russian-style authoritarian oligarchy, Islamofascism, or a Venezuela-style “socialism” in which the narrative only focuses on poverty.