But I doubt the distribution can be so high as people are always insinuating in these bullshit jobs subthreads.
Given the desire to always cut the useless non-profit parts of a business there will always be some pressure to find and eliminate bullshit, even as there may be some countervailing pressures to create bullshit. I think though that the feedback loops of capitalism are such that if you end up with too much bullshit at a company over time there would have to be a correction, leading either to the elimination of most of the bullshit or the downfall of the company.
If one believes most jobs or a great proportion of them are bullshit then that person should refrain from complaining about MBAs and their cost cutting measures getting rid of jobs - because probably those jobs were the bullshit ones.
(on edit - assuming bullshit jobs are a disease of the employment place I think for the sake of analogy the percentage should be the same as the flu, so 5 to 20 percent in a company, if a company has 20% or more bullshit jobs that company has an epidemic on its hands and needs to do something. If it's 5% ah, that you can live with.)
It's a process that is going at a glacial pace pretty much everywhere, sadly.
Seen it happen many times and it made me cynical about the whole "there are no bullshit jobs" meme. IMO there are BS jobs, quite a few of them too.