While one may assume that in general, men have values and they act accordingly, it’s not so uncommon to find lack of honesty and sympathy in the business world. That’s why Zevulun’s partnership with Issachar- in which Zevulun gives economical support to Isachar and receives back a portion of the Torah study- is very important. But, Zevulun doesn’t learn the ways of the Torah only for himself, he will become an ambassador of the Tora values to the other nations.