Yes, I seriously advocate that employers pay what a job is worth, and I seriously advocate that employees get paid according to the value of their labor.
If it takes no skill to dig a ditch, the pay should be exactly what that job is worth. If an employee has more skill than "no skill", he will find other labor that is a much more efficient use of his skills.
BTW, it takes more skill than you're giving credit for to "drive a forklift". I've seen some people who are absolute artists in this endeavor. They should be paid according to their skill, this is the most efficient use of their labor.
Any skewing of this system of a product (labor or whatever) costing exactly what the market says it should is an inefficiency in our economy that costs everyone.
Labor unions break this system in the worst way - they use FORCE to keep their monopoly on the product of labor, and this hurts the overall economy, and everyone in it.