Sorry to break it to you, you don't get to wash your hands clean of it's incredibly detrimental effects on people mental health, the state of mis-information, and the creation of tooling that manipulates the way people think.
Ads made money before hyper-targeting, and will continue to make money long after. Most folks in Adtech are making an incredibly comfortable living - while ignoring the collective harm that is being done by the industry.
No matter where you work, it's worth asking yourself a few questions.
* What is the mission of my company ?
* What is the revenue generating unit of my company ?
* Are the two aligned ?
* Am I comfortable with the answers to the above questions ?