There are caste systems in American cities: Many are marginalized to the edges of urban centers due to real estate costs; price tags seem to lurk around human encounters; there's a cult of overwork in the middle class; workers at your local manicurist, your local fast casual restaurant, are exploited.
As the world of independent feature filmmaking became increasingly commercialized by the mid-1990s, there was also a parallel, much more positive development: a resurgence in documentary filmmaking, thanks in part to the advent of the cheaper, lighter digital format that helped to offset the daunting costs of pursuing political aims through film.
Uber is hardly the first company to exploit the financial vulnerability of teachers - and the desperation of public schools more broadly - to score PR points. Amazon, Boeing, Bank of America, and other corporations have played the part of school benefactor, offering everything from reward programs to school supplies.