Generally speaking, psychic masters don't charge money or only charge a little money (the so-called reward is not because you give too little, but because you give too much. ) and they are not very famous. Some famous people are hard to meet, and generally don't ask for anything, because that's a taboo for psychics. Magic wand is charged and many people believe it. Why? Magic wand is good at studying people's minds.
Moreover, ancient telepathy, telepathy of various religions and so on are not omnipotent.
Hehe, that's all. Read more books by yourself.