There should be an industry or cinsensus standard because it's an abso-fucking-lute waste to have incompatible infrastructure. Imagine if gas stations were manufacturer specific. It would be a nightmare.
That being said, all the manufacturers are striking deals with Tesla for access to their charging stations. So Tesla is reaping the rewards to an extent.
But something as big as this should, IMO, fall under rules akin to the FCC's FRAND terms for communications licensing agreements. Fair, reasonable, non-discriminatory. And it would still realize Tesla a hefty profit.