You are obviously misunderstanding two things, cheating and committing a crime. Cheating is like doping in regular sports, you get banned for the certain amount of time and by the time you are unbanned you won't even bother playing again. Match-fixing from the other hand is a crime, in most of the countries you'd face jail time for shit like this. You may ask why? It's because there are tons of the money on the table ( from betting etc ).