Loyalty
It goes both ways FMC.
I got to that point with a former employer but stayed to see out my contract because it was the right thing to do.
Now being on the other side of the fence and running a business, it really p#sses me off when I hear of people signing a contract and then 2 weeks, 3 weeks, 4 weeks later they up and leave you in the lurch because the grass is "greener" elsewhere. A commitment is a commitment. If you can't commit, don't sign the contract.