lol. Suppose their salaries reduced to half of what they are making today, how many of them do you still think will continue to work at these places, for the technical challenges and whatever else they have told themselves is the real reason for them to work there in the first place?

I don't doubt the technical excellence of these companies. They are technically very capable because of the talent they hire, and they are able to hire top talent because of the high salaries they pay, not because of some altruistic or egoistic reasons