Because they became Trumps biggest backers and all the things they done since he was elected open them up to corruption investigations, particularly House Investigations.
For sure, I hated the that. But the financial shenanigans that tech decided to do thinking Trump would be leader for life will come back to bite them. Its some of the worst corruption since like early 1900s.
They just kowtow, and that's why the next regime will like them just the same.