I think culture has an enormous impact though.The North-East Asians (the Northern Mongoloids) seem to be the most carnivorous sub-species of homo-sapiens. They also happen to be, contrary to popular imagination, the most cold-evolved and cold-adapted sub-species of man - they are, in fact, much more cold-adapted than Europeans.
I have a pet theory that their ancestors underwent evolutionary selection pressure for a significantly increased sense of taste for meat - in arctic conditions there are few edible plants but animals/fish are usually around - and that this is the reason why they are able to have all sorts of strange animals and aquatic life in their diet.
Taste preferences have already been shown to be highly genetically influenced. No amount of cultural conditioning is going to make you develop a taste for insects and dog meat. And most people outside of East Asia are unable to consume those things without vomiting or a negative reaction. Therefore genetic factors are likely to be involved.
This is an interesting issue that the field of genomics will be able to shed light on in the near future.
Yuck.For survival yes for a boost in ego no . He will burn in hell