There has always been people from a working class background who have made money more so since maybe the 60’s
I don’t see them as wannabes they just want the same opportunities for themselves and children as those born into a more privileged life (and not ashamed of it)
Some might be more flashy with their money and probably gives away that they are from new money but so what what are they wanting to be?
People want to be middle class because life holds more opportunities and a better standard of living not because the MC are in anyway better though sadly because of our deeply ingrained class system having a nice accent, having certain names, dressing a certain way, going to particular school does help you get on people have formed an opinion of you and that is not based on intelligence or how you are as a person