You obviously have to balance the legitimate cost against the illegitimate costs people will incur to get kids admitted. I don't know if 3x or 10x is the right

You obviously have to balance the legitimate cost against the illegitimate costs people will incur to get kids admitted. I don't know if 3x or 10x is the right value, but it's definitely not "more is better." If you make it cost a billion dollars to legitimately buy your kid into the school, there will still be millionaires utilizing these sorts of bribes.