Old money is usually dirty and product of taking advantage of broken systems or even illegal action that is only pardoned by further corruption, inheritances and policies that benefit the rich usually keeps them afloat through the generations.
Shit is so blatant that Nouveau riche is a derrogatory epitet and new money people are usually seen as out of the norm and in many instances is used to imply it will be short lived.
Only because they usually do it at the expense of everyone else and I was also pointing out the naivete and stupidity of believing rich people are rich because they work the hardest. Capitalism isn't a meritocracy.
A poor person becoming rich under capitalism is actually pretty rare, most times it has be acquired through underhanded methods. The middle class is shrinking in the US, and many other capitalist countries.