lol, I'm one of those weird guys on this site who tries to AVOID game overs on my playthroughs, though I'm not opposed to watching them when I do fail. In fact, before I even knew of this game genre I was renowned for leaving many games unfinished for one reason another. No joke. It really did feel like a curse at times that I ended up hating myself for it.
But then the first Sinsistar came along and broke said curse. I wanted to guide Rabiane to victory and, given what the deeper meaning to her story is, (at least with my head cannon anyway), I felt like I was rescuing her, so my attachment to her wellbeing far exceeded any perverse need to see her suffer. It was an itch I didn't know I had so I hunted down similar games and completed them, too. (Anthophobia, The Agnietta, etc...) So... yeah, I'm all for that good ending horizon.
In the end, the fear of being raped by monsters most foul is ironically a great motivator to survive. Who knew?!