Which preposition to use with pointedness

of Occurrences 1%

He was not a consecutive thinker, like Dryden, and cared less about the truth of his thought than about the pointedness of its expression.

with Occurrences 1%

The teacher must therefore gradually learn his own place in evolution, so that he may become one-pointed as to himself; unless he practises one-pointedness with regard to his own ideal for himself, he will not be able to bring it to bear on his surroundings.

Which preposition to use with  pointedness