'About 22% of that group felt it would be unsafe to fight back or not give consent when they were sexually assaulted. Victims were overwhelmingly young: More than 90% of women and 70% of men who had been harassed or assaulted were students, postdocs, or employees of lower rank than their assailants. Women were 3.5 times more likely to report sexual harassment than men and significantly more likely to have experienced sexual assault. “This is about power dynamics in a permissive environment,” Clancy says.'
This sounds to me like the person in charge is getting away with behavior that is established as wrong, and the person in power is often inclined to sexual harassment. Better accountability at the top of the research group might make this a bit more difficult to get away with; you could imagine that this kind of person, in addition to sexual harassment, might make other problematic comments, perhaps ridiculing people for lifestyle choices(smoking, being overweight, etc.) or engaging in intolerant language (racist jokes, homophobic comments, etc.)