Comment by mejutoco

> Someone asking wants to understand how and why you make decisions. What motives you

This is too simplistic. Someone might ask that for a million reasons. Also, you will be judged not only by your answer. Being so direct might show you are not on autopilot in the conversation, your humour or that you only care about money, depending on a lot of other factors. It might make one more memorable as well. I personally would read it as light humour, unless it is accompanied by a dead eyes stare.