The tax code is geared up to help people who are married and have children - my married friends pay 20% less than I do, my married friends with kids pay even less then they do. I take umbrage with this.
Having benefited yourself, you shouldn't be bothered that others also benefit. It is only fair.
BTW, you can earn a 6-figure income and have negative taxes. The key is to have a double-digit family. This is what I do. Nothing is stopping you from doing likewise.