Reminds me of one counterintuitive historical point about labor - free workers are more productive than slaves despite overseers and long hours. The industrial revolution failed to take off in slave states early on despite the clear apparent advantage of unpaid factory workers. The two conditions are in no way equivalent of course but the point is incentives also matter and "worthless expenses" may be pivotal to success.
There may in fact be some indirect benefits resulting from this change including less distracted workers, lower turnover rate as talent feels less pushed into a "mommy" track or to seek more flexible workplaces, and increased desirability as a workplace to reduce recruiting costs and increase the magnitude of available talent.
One of Henry Ford's principles of paying his workers well wasn't just so they would tolerate his control freak nature but to gather the best talent. Relatedly petty annoyances of dress code and schedule were part of what caused the traitorous eight to depart for Silicon Valley.
While it may not pay off fully on the balance sheets it isn't a complete loss either. Potentially it could pay off long term.