These young people need to understand that in China a contract is a contract. This is not professional sports where they can just break a contract without penalty.

Utter shyte. A contract is not as you claim in the PRC. Show me labour laws that apply to foreigners (beyond SAFEA), a contract in China is always one sided. Need I mention Danone or the Siemens contract. If big european businesses are getting screwed over, what do you think they give a crap about a foreign teacher.

Sports implies fair play, but there is none of that on the table, whether you like it or not, a FT has their passport, they can leave at any time they like.