These are the same arguments made by Elitist who justify their actions with MONEY or some form of POWER (i.e. Political Power, Economic Power, Status, ect) . Their kids inter-marry in the same circles continuing their "Strength" each passing generation. Furthering their belief of superiority and/or simply "knowing better" than those who have to work for a living, or have not reach their modicum of success.
POWER in any form does not make you better, more deserving, more knowledgeable, more correct, or more ANYTHING than anyone else. Ever.
Disclaimer: Not every person who is rich or holds political power hold pushes these views. At no point in time should blanket statements or feelings beheld against any group of individuals(good or bad). If you do, you're no better than any racist or elitists you claim to be against.