There was nothing not to agree with the condition.
Annan was very clear about the purpose of the fourth radiant.
Banks, exchanges, markets, and the like were all considered sacred places for the Silver Baron; however, among these, banks were actually the most important.
Because they held the crucial powers of "storage" and "lending," which directly made them the center of trading behavior, an essential cornerstone. Just as the gods always needed to plant a crystal tower before they could build other structures.
When the Duchy of Winter began to implement the banking system and established banks in all cities… it meant that the church of the Silver Baron would definitely send people to the major cities of the Winter Duchy.
It looked like an expansionist behavior and indeed it was.
But it was not a bad thing.