Based on the statement what can be inferred about rainsfords ideas?

Rainsford does not hold human life on the same level as animal life. For Rainsford hunting is a sport or a means to gain food, not a mere even to simply kill for the love of killing. 
Zaroff's ideas counter this in that Zaroff has progressed to the point where killing humans, the most intelligent beings, has become a sport to him. 
The bottom line is that the two men have different world views which influence their actions. 

Iwould look up an analysis of the quote and then respond with how you interpret it and support with experiences and even evidence from online sources.