In our current system, if we want social programs to keep running, we need tax dollars. If we had a tax of everyone pays x amount, we'd either not have enough money for social programs, or there would be many who could not afford to eat because they had to pay high taxes. By making it varying percentages, it's possible to collect enough revenue to fund the various social programs, while, ostensibly, taking the tax burden off of those who can't afford to pay as high taxes, and moving it to those who can, taking into account each person's ability to contribute.


