There've been numerous Presidents who are akin to Ballmer though, having presided upon times where things were pretty good for the fortunate segment of society but doing nothing about looming catastrophes which could be seen but weren't critical problems. I'm thinking of Fillmore/Pierce/Buchanan in the run-up to the Civil War and Harding/Coolidge/Hoover in the run-up to the Great Depression. It's fairly likely that historians will view Dubya/Obama/Trump in the same way in reference to some future crisis around the national debt, global warming, or rising inequality.