Do you personally know anyone that has been to jail for income tax evasion?
I actually do. He was just convicted within the last couple of months. He'll be in for four years, as he didn't pay any income tax or file for at least four years, to the tune of several million dollars. Instead he spent the money on his automobile collection, which has subsequently been seized and is being sold to pay what he owes.
This was a very rich man. He could have easily afforded his taxes while maintaining a standard of living far in excess of anyone else that I know had he not chosen to buy cars like a madman. He had homes in at least three cities and could afford to go to car events all over the country several times a year. He did this to himself.