Tom*
An Uncle Tom is a sellout, a betrayer of his own people for the sake of personal gain and position. A trope attached to race, yes, but one referring to individuals deliberately standing apart, as opposed to applying to an entire demogaphic.
"Blue collar criminal" does not apply to all Wall Streeters, "Benedict Arnold" does not apply to all generals, "KKK" does not apply to all WASPs. "Uncle Tom" is about a character flaw afflicting one individual, not a stereotype applying to an entire race.