Umm it's more complex than that. Open standard would still need money to survive. And Big Tech will flex their philanthropic muscle and influence open standards.

There is a lot of empirical evidence of this. Look at Matter protocol in home automation, GS1 in retail. Starts as a good idea but as soon as there is adoption, there will be several market motions to mess everything up.

The only way for an open standard to grow is a large extremely committed community that is largely made of people who don't have to worry about survival.