What does St. Clare believe in his responsibility regarding the souls of his servants?

From the text:

"And what becomes of their souls?" said Miss Ophelia.

"That isn't my affair, as I know of," said St. Clare; "I am only dealing in facts of the present life. The fact is, that the whole race are pretty generally understood to be turned over to the devil, for our benefit, in this world, however it may turn out in another!"