This is a work culture issue. Not sure if even the government can really help with this, unless they made new contract laws. Check out pre-school teachers situations (ho-iku-shi) in Tokyo, underpaid, overworked (without pay). We did a calculation once when my wife was working as one. She has a graduate's degree and was making a real wage of about $4/hr working 12 hour days. Luckily after two years her work culture allowed her to quit :0 Because in that work culture you can only quit at certain times of the year...