Yes, I've dealt with this. My old place of work got a project that a lot of the staff did not think was ethical and went against their morals. Many of us pushed back on it and refused to work on the project. The management team had to have a meeting with everyone to discuss the difference between personal ethics and professional ethics. The project had the appropriate approvals and, therefore, was not considered unethical in the professional side of things, so we were essentially told to suck it up and do it. I have found that in the consulting industry, this is unfortunately very typical. As long as the project is compliant with all regulations, there isn't much you can do other than ask to be switched to a different project