A very true quote Alan.
Psychologically I have to agree that's probably all true.... as even collecting of unnecessary items is probably also a perversion of our innate hunting instinct, First we look for our prey, searching hi & low.
Then we spot it & then hunt it down by wealth compete with the other hunters {If at Bonhams/sothebys & the private top ethnographic arms dealers etc.} Or we hunt it down by trawling the web etc. for the unrecognised & badly described pieces using our knowledge against those of the sellers & indeed once again the other hunters...
We then have that achievement of obtaining that item {The kill..}
Of course being hunter gatherers, even if the result is good, {Tasted good}{Sadly some don't...
) We are soon on the hunt for new prey again...
So I guess on our most basic of needs, theft is just another technique to achieve our prey...If we have rejected society's training in moralism.
As a friend of mine , who many decades ago who was the youngest man to ever get into the SAS was told, during psychological interviews after he explained he could easily kill a true enemy but wasn't sure he could cope with deliberately killing an innocent... "Don't worry about that you've got 19 years of civilisation in you , but a million years of survival." & " we will help get You back to that place to do whatever job is required." {first part as quoted, second as paraphrase as cant remember the exact words, just the meaning from that 30 year old conversation.}