Such integrity! I feel like if Mike wanted to he could've easily earned a bit extra in that last round. With the fear of 'no money at all' above their heads he could've stalled out until the last round and then give them slightly less than their share e.g. 1000 each. If they don't accept they don't get anything, and it was established that they are trying to maximize money, so they probably would accept it, leaving an extra 800 for Mike