Well I mean all it takes is a better offer, and all you need for that is more money. Wouldn't necessarily call it influence but yeah, it's still crazy either way.
TSMC isn’t a purely monetary profit driven company, though your right usually they do business as if they were. Because 100% of something is much different than 99% in B2B and at this scale. Though of course TSMC is a bit special because they are comfortably ahead on something that the only possible competitors are even more unlikely to do exclusivity.