Yes. That is my point. Political ideologies (quite aside from religion) can cause many good people to do bad things. So can any kind of idea that affects people's judgement and creates fear. It does not have to be a religious idea. People are easily influenced not only by religion, but also by culture, politics, media, philosophy, style, custom, commerce, race, you name it.

How many evil things have been done merely to make a good profit? Most of those things were done by basically good people who were caught up in the process of what they termed "good business". They were playing the financial game. They focused only on a specific result (which they deemed "good") while accomplishing other results which were very bad indeed (such as ruining the environment or putting millions of people out of work).