I upvoted you because you make a valid point ... what exactly, are the government services that Greeks who "should" be paying their taxes actually receiving?
One big group of tax evaders are doctors, who like to play both sides of the game. They accept large government subsidies and equipment on the one hand, and run off-the-books side businesses with that equipment on the other hand. Sometimes the side business isn't even very "side": doctors frequently demand and receive under-the-table cash payments to "expedite" service in the state hospitals.
They also, of course, didn't pay tuition for their medical degrees--- their education was paid for by the people who actually pay taxes.
They also, of course, didn't pay tuition for their medical degrees--- their education was paid for by the people who actually pay taxes.