As someone raised in a very traditional religious environment, I am not a big fan of the market economy approach of quantifying and anonymizing roles (including that of my local grocer or 'fishmonger', to name an example).
But on the other hand, we live where we live, and in this world I figure if we don't respect mothers because their role is difficult to express in money, we should at the very least fix that and give them all the support they need, monetary, paid leave, or otherwise.
Correction: Jobs that return a very positive cash flow (for someone) pay well. (Teachers, Cops, Firefighters vs Brokers, Singers, Pro Athletes)
Unsurprisingly, that respect gradient also tracks closely which jobs are stereotypically female-dominated. Even staying in education, school administrators - historically male – get more respect for comparable levels of education and are paid more for doing less work.
Again, the point is simply that our talk isn't backed up by our actions.