movin' up
I agree David Attenborough is undoubtedly the finest maker of wildlife documentaries ever, but Steve Irwin aimed for and reached a wider audience.
It may say a lot (to you) about "the intellect of those watching", but millions of people who wouldn't think of watching an Attenborough documentary nonetheless learned a great deal about the wonders of wildlife from Irwin.
I agree with Nick and jetflite about the comments you've made.