LOL.
Let's follow this logic.
If all paths lead to death, and nothing there after happens, then whats the point of following any rules? You can be a rapist, or a good samaritan. A fireman, or a...Jack the Ripper, or something. But in the end, you die, and nothing can be done to you, in fact, that "you" that "mind" that contains all of you in it, will cease to exist, and you won't even know it...
So, it looks like the idea of "morality" "right and wrong" don't have any meaning, at least, not for long...so it doesn't matter if someone follows them or not, because in the end what you just spent your time on actually has 000000000 effect on anyone, BECAUSE THEY'LL DIE TOO.