quotas of women rejected

http://www.telegraph.co.uk/finance/newsbysector/banksandfinance/8320654/Lord-Davies-rejects-quotas-for-top-City-women.html

i can't see it for private entities, but why not for governmental entities?

say, for 20 years, set the quota for council boards, institute regents, ministries, etc. at 80 pct female.

it's not like there aren't people lining up for those jobs. we could even push through pay cuts!