Many people suppose that ownership gives you the right to use something. This is not true. If no one owns something, then everyone has the right to use it. If you acquire ownership of something which was previously unowned, you do not acquire the right to use that thing because you already had the right to use that thing.
Ownership is the right to prevent other people from using something. Ownership is the right to exclude other people.
If more than one person attempts to use a piece of land at the same time, then chaos results. Private ownership of land prevents this chaos.
For example, suppose there is a piece of land. One person attempts to use the land to grow wheat. One person attempts to dig a pond on the land. One person attempts to build a house on the land. One person attempts to use the land as a parking lot. One person attempts to use the land as a garbage dump. Every use destroys every other use. Every use of the land is destroyed.
If you exclude other people from using your property, you prevent other people from destroying property.
If more than one person attempts to use an idea at the same time, there is no problem.
You do not need to prevent other people from using your ideas to prevent other people from destroying your ideas. Ideas are indestructable.
Property rights in land and physical objects benefit society by preventing conflicts. Property rights in ideas, inventions, patents, copyrights, artistic creations, and other intellectual property do not prevent conflicts.