I think that the idea of "sticky wages" is valid. Along with the problems such as government and union control of wages, for some people, it's simply hard to accept that their wages could drop from one year to the next. It's a psychological thing, and it's unfortunate if people refuse to accept a lower wage even if it means that they can buy just as many goods with the lower wage as before.
The problem that I have with Keynesian ideology is that they try to "fix" the problem by pumping money into the system and decreasing the value of the dollar. In this way, employees see their wages stay the same or even go up in nominal terms, while in reality their real wage declines. Employees are basically tricked into accepting the lower wage that they had previously refused.
So sticky wages are a problem, but they're a problem that sometimes comes from sheer irrationality. Instead of trying to fool employees, people should be able to make their own decisions based on the real information of prices/wages. People will eventually figure out their irrationality.
Of course, people would probably be more willing to accept lower wages if prices were not continually increasing due to an inflating money supply. I think that upon eliminating a central bank it will take some time for people to get over the idea that the wages and salaries should constantly be going up.