Riot pays very well, it's not "meager" money, even if living in California is expensive (and it is). You also don't want to burn bridges, and flagging harassment internally can absolutely burn bridges, especially with higher ups in a company, that can absolutely harm your career moving forward. It's one of the reasons that people who want to stay in an industry stay quiet about it. Because they view the pain of "toughing it out" in the hopes that it gets better or until they find another job less risky than potentially losing their career over it. Also, outside of the harassment, a lot of these people like their jobs and don't want to leave. You can like your job, most of your coworkers, and still be miserable because of a culture that leads to harassment from management and select others, even if they don't make up the majority of your coworkers or the behavior is only a small part of each day.