Strictly speaking, Thresa Caputo isn't a psychic, she's a medium (or claims to be). She tells you what the dead want you to know, not what will happen in your future. I have no idea whether she cheats/bilks people out of money, but much of what she tells people (at least what ends up on TV) seems to help them, enables them to put guilt/regret aside and move on their lives.

They bilk you for money and so many cannot see that. A main reason they are believed is the bible seems to say "sorcerers" have powers, etc. It then follows that even if you do not go to church you might believe this hocus pocus and lose a lot of money. Psychics and preachers are about the same to me. Beware!