I took a marketing class in the course of my CS degree, and my main takeaway was that a lot of marketers are aliens in people suits. Their ethics and priorities are utterly disconnected from anything human.
You really start to understand how e.g. IBM could knowingly and cheerfully supply the Nazis with the punchcard hardware they needed to keep the Holocaust running smoothly. The client's satisfaction is the only relevant criterion. "But they're killing millions of people" will be met with the same blank, uncomprehending stare as "But the paint you chose clashes with my sweater."