Those would be different kind of regulations. Not just ‘you need functioning brakes’ kind, but also ‘you must serve this route that hardly anyone uses and and you cannot make any extra money from’. Or ‘no extra fees, even where some people would pay them’.
But that is what they already do. Currently this might be hidden in the EULA, that no one reads, but even making this plainly visible during purchase wouldn’t change much. I is not like the players have much choice when they want to play that specific game.