I think you might have totally missed something out of your equation BigSidney! The reason why we are truck drivers and not polititians is, probably, mainly, because we don’t want to be polititians, we prefer to be truck drivers. 
Another thing to bare in mind, possibly, is the answer to this question. Why are the rates for any particular job, low 
Don’t even bother to mention East European companies, etc 
The rates were low long before these people arrived on the scene 
After all, everything depends on the rate a company is paid for a job.