Edit: tell me this doesn’t sound stupid
There is only two types of jobs:
Doing something someone else doesn’t want to do
Or
Doing something a specific other person can’t do
The only thing I can think of that someone other than myself can’t do is piss my wife off to no end. Not really a job, tho.
No, for all jobs there is only limited supply. If more people want the job than there are jobs available, some of the people who want the job must necessarily end up not getting the job.