It's merely conventional that humans can claim the property of ideas. Nobody can "steal" an idea, so there's no way of ripping off the creator.
The notion of intellectual property is now widespread because is the source of profit for companies, but it's not "natural" as the property of material stuff.
Apart from that, if you think that the current laws protect the creators from third parties profiting with their ideas, how do you think Microsoft got big?
The notion of intellectual property is now widespread because is the source of profit for companies, but it's not "natural" as the property of material stuff.
Apart from that, if you think that the current laws protect the creators from third parties profiting with their ideas, how do you think Microsoft got big?