Many of the large fee paid "dropshippers" are not dropshippers at all, but are truly middlemen, holding no inventory. They get orders from you and then pass the order on to the true dropshipper.
A true dropshipper holds the merchandise they sell. Many are also wholesalers of these goods and offer dropshipping as one of their methods of distribution. Some charge more for the exact same product when the dropship it than they would if you had a store and bought it from them.
Others, such as myself, have the same price either way.
There is no good or bad, right or wrong. There are some who charge a fee who are great and there are others who are more interested in the fee than in supplying the goods.
You have to find what suits YOUR need the best.