Indeed, it seems most people who mention I, Robot or the three laws haven't actually read Asimov's work themselves. The entire point of those stories was exploring various ways in which the laws didn't actually work, or at the very least how they could be exploited. And the conclusion from his later robot books was that if the three laws actually were perfect, it would be a terrible thing for humanity as a whole. For those needing a more recent example, the humans in Wall-E are pretty much a direct copy and paste of Asimov's robot-reliant Spacers.