They are the measure of man. Man, specifically. Those who do not think as they do are stupid and wrong. They do not understand how anyone could be so stupid as to pray. Or who doesn’t want to live forever. These people are not really people then, in their estimation.
They pulled the wings off dragon flies because they could.
They built model rockets and killed the rodent-passengers because they could.
They drugged Cindy all those years ago in college and raped her. They weren’t sure which one. Neither paid for the abortion.
One of them is a genetic engineer now. The other writes AI code.