I don't even deny this. I am allowing for the possibility, however, that he did feel the need to save her.
I've seen a lot of discussion here back and forth. But people generally aren't all good or all evil (well, except RP). It is possible that BDR did at least partially have that motive, but also felt compelled to help her after he saw the tape. Maybe his motives were all predatory, but maybe they weren't. It is so hard to tell. Nonetheless, what he ultimately did was wrong.
The more details that come out, the more I worry about SLP.