Well we can provide customized solutions for clients. I manage a several billion dollar fixed income account for an insurance company. We charge roughly 0.05% which is comparable to passive fees. In return, we can manage to their guidelines (exclusion lists, duration targets, risk parameters, etc) and also (to the extent we are any good at our jobs) provide better than passive returns through active management.
Now you could argue that a bad investor isn't worth their fees if they trail their benchmark, and you are correct. But you should be willing to pay above passive fees for above passive performance. The challenge is knowing before you invest whether you will beat or trail the passive funds. Therefore, for the average investor, you should just put your money in a passive fund.
When it comes to real estate, it costs 5% to transact on your home whether an agent is good or bad. A few might be worth it but in my experience, my willingness as a seller to price the house properly is the biggest factor. No agent is so good as to sell a house worth 700,000 for 800,000. An agent ought to be able to make a living selling houses... they do add value...but I don't know why it shouldn't be something like $2,500 in expenses (photos, etc.) and a flat fee of $20,000 (or whatever the agent and seller agree is fair).