1) If we tell women their whole childhood that some jobs are for men and some are for women and vice versa for men then ask them when they turn 18 what job they want we'll get horrendously unequal outcomes even though people are completely free to choose.
2) Valuation of jobs is based partially on the view of the value of the work in addition to the actual value provided. e.g. there's huge amount of societal gain to be reaped by providing better education to our children but various forces keeps the wages to teachers depressed relative to the gains to be had from providing smaller classrooms. In a more solid sense it's much harder to evaluate the value provided by a better elementary school teacher because most of the metrics for success are either years in the future (wages, college graduation rates, etc) or tied up in a huge number of other influences.
These kinds of defuse benefit jobs are a lot of what have been traditionally gendered as women's jobs and in the past were just part of the huge unpaid work that women were expected to do and often are unfairly characterized as easier or less educated/lower skilled jobs. There's a whole gendered history tied up in just how we evaluate these jobs and their benefits.
