Is it possible that ONLY those who strongly believe in reincarnation will reincarnate?

My reasoning is that, just like those who wind up in belief system territories, maybe those who strongly believe in linear reincarnation will reincarnate solely based on this flawed belief system.

Second question is heaven a higher level of consciousness than us? What happens to psychopathic serial killers? Surely their level of consciousness or psychological makeup would be incompatible with the heavens?

Also if your previous life was a deity, you would not remember it now because the level of consciousness would be incompatible right?