Is consistency overrated?

Jeff Bezos thinks so:

... he shared an enlightened observation about people who are “right a lot”.

He said people who were right a lot of the time were people who often changed their minds. He doesn’t think consistency of thought is a particularly positive trait. It’s perfectly healthy — encouraged, even — to have an idea tomorrow that contradicted your idea today.

He’s observed that the smartest people are constantly revising their understanding, reconsidering a problem they thought they’d already solved. They’re open to new points of view, new information, new ideas, contradictions, and challenges to their own way of thinking.

It reminds me of Keynes': "When the facts change, I change my mind. What do you do sir?"