no.Fools have to be taught a lesson.It's obligatory and healthy.
People who want a Tarot reading are going to get one. I think what determines how exploitative it is, is how careful you are with the potential influence you might have over the lives of the more gullible customers.
if treated simply as a form of entertainment, then it's just that. you will have to be your own guide as to how far your mores allow you to go beyond that.
Welcome to the field of fortune telling and psychics.
If you can get past the obvious moral and ethical problems then you can make quite a bit of money.
again, welcome to the field : P
Then why do you want a reading?
Ever hear of karma?