In the academic world, tenured professors are rarely fired for bad behavior. Their primary incentive is to create grad students who cite their work. (“Expand on the path they’ve laid”). This means they can tune out or abuse anyone not part of their citation factory with relatively little cost. As long as there is a ready supply of new students each year they are fine.
In the professional world the incentives are from the market. If you can’t generate revenue or funding you die. Leaders of small companies can be abusive to get things done. As the companies scale, abusive leaders find it harder to attract talent and bad managers tend to get weeded out by the market for talent. (Jobs and Musk are exceptions) As companies turn into monopolies focused on scale there are less external pressures and toxic behavior can return as turf wars trump market pressures.