The war against england thats what i think
1. Financing a business
2. Distributing the benefits of Owning a business
3. Controlling a business
4. How businesses are are taxed
5. Risk
6. Ownership
Immigrants would find themselves at the receiving end of lack of nationalization in case they did not buy into the rhetory of these political machines. Often delayed nationalization resulted from lack of cooperation with this political machines. Often they would help in raising the plight of immigrants.
4. Farming lands that was owned by someone else