I was on a small company board, was an officer, and was the (vast) majority shareholder, at least for voting rights.
Technically, the board could have fired me, and it would taken something like 2 or 3 months to have forced my way back on. (Calling a major shareholder meeting to elect the board out of cycle, plus calling a new board meeting to vote myself in, takes time and organization.) The political cost of overruling the board in that manner also wouldn't be null for me, and likely would've caused key staff to quit and key backers to stop supporting the project. I definitely would have had to do a lot of explaining for such a power play, and it's likely my reputation never would recover at the company.
As a lot of kings have learned: your word may be law, but nobles pay the taxes, provide the swords, etc. You can't make enemies of everyone.
Technically, the board could have fired me, and it would taken something like 2 or 3 months to have forced my way back on. (Calling a major shareholder meeting to elect the board out of cycle, plus calling a new board meeting to vote myself in, takes time and organization.) The political cost of overruling the board in that manner also wouldn't be null for me, and likely would've caused key staff to quit and key backers to stop supporting the project. I definitely would have had to do a lot of explaining for such a power play, and it's likely my reputation never would recover at the company.
As a lot of kings have learned: your word may be law, but nobles pay the taxes, provide the swords, etc. You can't make enemies of everyone.