Most of the modern translations are copyright to a particular publisher. The translators sold them the copyright to cover their costs. The publisher makes a bit, the distributor makes a bit and the bookshop makes a bit.

The King James Version as well as the RSV and NEB are Crown copyright. Part of the proceeds of each copy sold go to Crown Estates and eventually finish up in the coffers of HM Government. However, the Church Commissioners pass on an equivalent amount to the Bible Society who distribute free copies to those who need them.

But you profit from reading it.