In a world without popular support for the concept of IP (with everything else being left equal) people would be incentivized to rely on secrecy. This situation sounds like one that would be more common in a world where secrecy is used more often. (Obviously, there are possible worlds without IP where that problem doesn't exist and maybe even it's hard to get a world with IP where it doesn't exist, but I'm think of quite literal ceteris paribus.)