They were doing what they were told, and would therefore get whatever benefits obedience brings.

Whereas the women now had:

- a bunch of male scientists leering at them [1];

- some photos in the hands of those scientists that could be embarrassing;

- the possibility of those photos being stolen and distributed;

- a strong sense that they have no right to privacy or dignity in the highly male-dominated Ivy League world.

That last one would count as an educational bonus, at least.

[1] I'm only guessing that the scientists were male here, but I think it's a safe bet. Even nowadays, but more so then.