Geektastic: You're not rich unless your income from unearned sources exceeds $500,000 a year IMO.
I don't see a reason to distinguish between earned and unearned. Maybe in terms of disposable income, and for round numbers figure minimum wage (about $35K pa) is minimum cost of living, and anything above that after tax is disposable income.
At an annual income of $200K, you pay $52K more tax than a minimum wage earner, and so have $148K of disposable income. IMO that's rich.
In world terms, that isn't even well paid.
For 90% of the world population, that's beyond the dreams of avarice.