Which preposition to use with enrichment

of Occurrences 42%

It is scarcely credible to what an extent this ephemeral courtship is carried on in this loving town, to the great enrichment of porters, and detriment of knockers and bell-wires.

in Occurrences 3%

Since the elements of permanent worth in the tendencies, doctrines, and institutions of the Middle Ages are thus culled out from that which is corrupt and effete, and preserved by incorporation into the new view of the world and the new science, and as fruitful elements from antiquity enter with them, the progress of philosophy shows a continuous enrichment in its ideas, intuitions, and spirit.

Which preposition to use with  enrichment