Would Mowgli have a "purpose in life?"

Thought experiment. Suppose you grew up as a feral child in the wild, marooned on some deserted island and raised by another species of benevolent primates or wolves — a real life Mowgli. In this scenario, apart from any language and human society, would you still possess a mental concept for having a “purpose in life?” More simply put: do you think the idea of “meaning and purpose” is more of an innately “hard-wired” psychological human trait or a socially dependent cultural construct? (And if the idea of personal purpose is culture bound, how would you differentiate it from other ideological, religious, or unfalsifiable beliefs commonly held in the culture?)