Whats wrong with question?. Once your b1/ f1 visa is rejected , you have to show strong tie with home country or good travel histry .

Plenty of people go n work in dubai ,qatar just 2 apply for shenzen visa , stay portugal for 5 years and get EU passport. These are generally low profile working class people . Once you visit portugal , poland , malta , romania then you will realize what OP is talking about.