Just because quantitative analysis has solid grounding doesn't mean that its use is unrelated to ethics. The finance establishment is an organized power structure whose decisions are political.
If you want an analogy, I'm pretty sure that you'll find plenty of people who used ballistics to achieve goals that you would find pretty unethical.
Refusing to take a side _is_ a side, it means you're fine with how things are going on their own.
This isn't corruption, it's just recognition that life has choices, and those choices have consequences, for yourself and others.