Former Uber employee here.

Did Kalanick really set up and encourage a bro Culture?

No, not at all. He's a grown man and unbelievably serious about Uber.

Did he respect fellow employees as humans

Yes. Always.

or was just running behind business success?

I don't know what this means, but Travis Kalanick is absolutely the main reason that Uber has grown faster than almost any other company in history.