A family who earned $500k is likely putting lots of money into some sort of savings or investments while a family making $50k is likely living paycheck to paycheck. The $500k earner can part with a little extra to help benefit the greater good.
Also, your ridiculous "they worked harder and low income people are lazy" schtick is idiotic. Do you think someone who grew up in a poor family, went to an underfunded school district, had to work to help support the family, couldn't afford college, and works multiple jobs just to live paycheck to paycheck is lazy? Or are the high income middle managers that grew up in high income families, went to good school districts, had college paid for by their parents, spend weekends at their lake house, have full time child care, and earn money off the backs of the lower income people the lazy ones?