Employee safety, compensation, and legal representation.
Settlers in Jamestown main problems were due to starvation. Many of the settlers mined for gold, instead of farming, thus causing a food shortage. At first, they received help from a nearby Native American tribe. Then came along John Smith, who ended that. Though Smith did help re-organize the colony, he raided the tribe that was helping them for food. After that, the tribe no longer supplied them with food, and actually caused constant paranoia to the settlers about being attacked. They started refusing to leave their fort, which meant no food or water, so over 700 ended up dying and the rest settled to eating rats and snakes found inside the fort.
Yohanan Ben Zakkai was able to put up a school for rabbis due to the permission of Vespasian, a Roman general. When the city where Zakkai lived was under siege by Vespasian, he faked his death so that he can hide inside a coffin and his pupils can bring him out of the city. He told Vespasian that he had a vision of the general would soon be an emperor, and he requested that his city be spared from war and for him to be able to build a school. Vespasian agreed that if the prophesy came true, he will grant his request. After becoming the emperor, Ben Zakkai was able to put up his school.
The migrations from Asia caused a significant mingling of religions and cultures.