No, that's not it at all. This is a function of the organic composition of capital, and the dramatic reduction in production time, and production labor-time that the bourgeoisie have been able to impose since 1973.
At the same time, the acccounting, managing, and marketing functions become every more critical-- thus the growth in white collar jobs. The virtues of working "with one's own hands," surely a pathetically petit-bourgeois notion that has nothing to do with capital which always works somebody else's hands, or wage-labor, which exchanges its hands as a class for something other than the direct product of the process, has never been anything but ideological obfuscation. dms