Real estate tools that actually help buyers and sellers! The vast majority of tools in the real estate space are there to help estate agents / realtors.
I wish that would happen, too. Cynical answer for why it doesn't: buyers and sellers are in an antagonistic relationship, so it's not easy to optimize value for both simultaneously. Realtors are the middlemen who derisk both sides of the transaction, raking in money in exchange. They have the money, they have the tools.