It is rather rare and illegal to 'buy' a partner, many left-over men will probably be alone for their lives.
adamnemecek was asking specifically about the life of Li Weibin, who didn't buy a partner.
Instead his is the live of a hard laborer, living in cramped dormitories, and forever alone, with little/no chance of breaking free from that life.
Unfortunately it's all too common among migrant workers.