What was Steve Irwin's acheivment?

Using danger to get a viewer's attention long enough to explain the role of conservation in unstable ecosystems. He managed to merge sensational-style television with a wholesome conservationist agenda, which allowed him to educate an audience far wider than otherwise possible.

Note: This style has worked exceptionally well in Australia with the conservation of the Saltwater and Freshwater Crocodile populations in the north of the country. A culture of respect is now competing with the centuries old culture of fear once surrounding the species.