I don't think it is a simple as SAHM vs work out of home moms. I've met some SAHM who were very hard working, driving their children around, relearning the entire primary school curriculum so that they would be able to help their children with their school work, bit I've met my fair share of ladies who lunch and seriosly do very little else (with their children or at home).
By the same token, I have met some really hard working mums who do a full day at the office and come home to pack in a few hours at home with their children, and those that do a full days work at the office and come home and do nearly nothing in the house with their children as they feel they have earned the RIGHT to a break after a hard days work.
At the end of the day, its the individual that counts, not the paid job or lack of it. A motivated and hard working soul will continue to be so whether or not they have the structure of a paid job.
By the same token, I have met some really hard working mums who do a full day at the office and come home to pack in a few hours at home with their children, and those that do a full days work at the office and come home and do nearly nothing in the house with their children as they feel they have earned the RIGHT to a break after a hard days work.
At the end of the day, its the individual that counts, not the paid job or lack of it. A motivated and hard working soul will continue to be so whether or not they have the structure of a paid job.