It must be the beer, because I honestly can't make sense of what you're saying.
I can't speak for the first Hostel (as mentioned, couldn't stay awake long enough to make it to the finale) but the second turns into a cartoon. Doesn't the chick throw the cock and balls to the dog? That is a proper Family Guy level of nonsensical violence, nor is it impactful in any way. Do you reference the 80's because it was an era dripping in hilarous violence? I find it interesting that you bring up that most modern horror is playing catch-up to the J-Horror boom, as two of the finest examples of that sub-genre (Ringu and Audition respectively) hit a far greater nerve than Hostel Pat II or the opening half of the first one ever did. Man, Audition is practically an unconventional romantic comedy until the final act, and it manages to make a decapitation not look like something from a parody flick.
And neither can I make sense of you at this point.
Yes, she does that. At the point where the standard parochial approach to the wealth-driven motivation of the elusive 'Elite Hunting' company is shown to be as the fundamentally ruthless core that it is, and and the 'bad guy' is not a rich, old-money white guy but a girl with a nice inheritance. Who is the bad guy in that scenario? The rich white guys? The company? The girl who pays for freedom with money she didn't earn? Any of them? All of them? The whole situation is a critique of the power of wealth. The rich guys are paying for what they want (it's a horror movie exaggeration of the exact situation you perpetuate when you buy cheap goods), the company is just an 'innocent' mediator connecting the highest bidder to a 'product' (see every corporation ever, again, distorted through the lens of a horror movie) and the final survivor was only able to save herself not through her own ingenuity nor tact nor skill, but through being unexpectedly rich through conservation of wealth in a capitalist system. Had a poorer person been in her position and she would be dead.