Yes they would? Mega corps can afford to commoditize various layers which prevents competition from accessing any profit. Meanwhile Meta et al can capture that profit in their own layers instead.
Bread and circuses to keep the people happy while they do they shady stuff behind closed doors. This is millenia old. Can't say that as fact but it certainly looks that way when you examine their record.
Remember when they were into swaying elections, giving extra data to Cambridge analytica? Here's more
The point was to counter the statement that Meta is the most ruthless and shameless of all companies.
The most ruthless and shameless company would not give back a lot of useful free open source software for hobbyists and companies to use.