He said that because he thought his involvement in politics had cost him money. It damaged Tesla's brand image and hurt its sales. He thought that this could cause his wealth to decrease. That Tesla's share price would go down. That the markets would punish him for his folly.
It did not.
He has instead found himself richly rewarded for it.

I wrote this comment on a $150 phone which for all the purposes that I use it for, performs exactly as well as an $800 iPhone.