Compared to smaller/less prestigious/non-tech companies, a certain level at Amazon/Google/FB will generally come with a higher expectation for technical compete

Compared to smaller/less prestigious/non-tech companies, a certain level at Amazon/Google/FB will generally come with a higher expectation for technical competence, as well as more comp -- even an L4, mid level engineer at Google makes like 250k. So someone who's a "Senior Software Engineer" from some rando firm in the Midwest may still be doubling their salary or more. The extreme version of this is being CTO as a startup of 10 people vs CTO at a company of 10,000.