Does the IT field have an artificial ceiling?

I’ve been noting over the years that most IT professionals have been moving to other fields and to an extent throwing away their years of expertise in order to advance up their career ladders. I know of a number of personal contacts who have moved to fields like finance and Humans Resources.
Is it agreed that no Tech Pro can ever land the post of either CEO, Director, Managing Director or Vice Chancellor or such other posts unless that individual starts his/her own company? Despite the fact that when we train for our field of expertise we learn all apsects of business including Finance and even Business communication.
And what is the remedy to this if any(i.e besides starting your own company)