This wrong, if you think about it. Division of labour and using other peoples capital(Equipment). 1 hour of developer time, could be used to leverage 5 hours o

This wrong, if you think about it. Division of labour and using other peoples capital(Equipment). 1 hour of developer time, could be used to leverage 5 hours of cleaner time. And the cleaner would most likely be more efficient at cleaning than you requiring less time. If division of labour didn't work, then the whole basis of trade is wrong. You might as well do everything yourself.