In the long term and right conditions yes otherwise no

With the aid of technology, terrible people capable of doing terrible things would lead us to the end of civilization. [Or maybe human extinction. who know ...?]

then people would get out of hand

Most people would be kind enough and fair, but nobody would be safe be cause of the people who wouldn't be.

Yeah, in the sense that new laws and legal consequences would eventually be re-written - it's just practical human nature. Nobody wants to spend their life trying to fend off roving bandits and shit

That’s how the world started

Not everywhere on this planet. Many people would murder others if they "know" that there are no consequences.