In my opinion, this could cause a few problems.
In my experience, coinflip plugins both private and public have a history of being exploited; without constant monitoring, any random player could abuse the plugin to break the system and win every match or even take money from the console.
Even if properly implemented, with poor luck, this could break the economy. Knowing the way many players are, they'd likely gamble their entire balances, leaving some players broke and other unbelievably rich, causing prices to fluctuate heavily.