It really irks me when all the good stuff is attributed unquestionably to American Entrepreneurship, and for all the accompanying bad stuff there's a long and nuanced story with lots of historical context and no clear, single, indistinguishable cause.
This sort of thing is too common. Here's another instance of this sort of reasoning far closer to home: rugged entrepreneurship clearly explains the massive success of the US tech industry, but exploitative labor practices in hardware and device manufacturing are caused by a myriad of global geopolitical and economic circumstances that cannot be obviously explained by any one factor.
edit: to be clear, "the story is complicated and there's no one cause" is the correct answer in both cases. Obviously. But also, in many cases, entrepreneurship benefits either passively or actively from nascent conditions. For instance, large swaths of sub-urbanization were undoubtedly driven by white flight.