For people who think they have made it, don't feel compelled to give anything back. My recommendation is that you re-invest into your community rather than giving something back to it. Re-investing is a stronger commitment than giving something back. Re-investment suggests a relationship based on mutual goals. One monitors their investments, and expects a return on that investment.
Investments usually indicate a higher level of involvement, participation and review.
Giving back is short term. Investing is long term. Investing provides a connotation of a partner. Our minority communities need more investments from its people and less people returning their gifts. If you want to make a difference in your community, simply invest in it.