Right, and there are better burgers than McDonalds. My point here is just to bring up an example of instincts getting horribly miscalibrated in a way that highlights the need for thoughtfulness and self-control.

Make no mistake, the term self-control doesn't just apply to food instincts, it applies to people instincts too. Your instincts want you to go around assuming that ugly people are bad and pretty people are good, but if you avoid every uggo you're gonna miss out (especially in tech) and if you trust every handsome salesman you meet you're gonna get rolled. Thoughtfulness and self-control are always warranted.