Salvatore's actions, which seemed very rational, were basically because he "adopted the advice of his senior, Vatore."
The issues that Vatore couldn't bother with and those that Salvatore stubbornly refused to listen to often appeared very hesitant and immature... and in the end, they usually ended up regretting not heeding the advice of the experienced.
It was for this reason that Salvatore was constantly in a "save me, oh dear Salvatore" state in Noah.
He produced many haphazard and seemingly pointless by-products, which just sat in Salvatore's store.
Among these, a considerable number of "very strange function" products even caught Annan's interest. Some items were simply not available in other stores.
So, Annan bought a batch, considering it as supporting Salvatore's business.
Among them, there were indeed some useful items.