Depends on the profit margin in a field. Some industries have razor thin margins. Unless your competitors do the same as you do (and in some industries, your competitors are in other countries with different standards of living), you don't have a whole lot of choice.
Software/SaaS is able to give ever increasing wages because of near infinite supply of investor money and/or insane profit margins (which won't last). Some other industries, not so much.
Yes, but even in industries with razor-thin margins the solution to a labor shortage is to increase salaries. Some of the companies will go under, and the most productive ones will survive. It's capitalism, quite simply.
Software/SaaS is able to give ever increasing wages because of near infinite supply of investor money and/or insane profit margins (which won't last). Some other industries, not so much.