You haven't even been there, how can you judge people?! The sense of conscience (or justice, in other words) has different meanings for everyone... For some, taking revenge by killing a person is justice, while for others, it's enough to say some curses to that person behind their back, and for a third, it's just to forgive, so it's better not to engage in demagoguery. Essentially, the rules didn't restrict players + the system glitched when matching losers with winners.
So, you think the rules allow selling games - I understand you. I wonder if Dirty thinks the same way?