I like Man vs Wild. It's entertaining and I do learn something everything I watch the show.
I do however get tired of all the man vs Wild bashing all the time. It seems to be all the rage while we sit on our butts each friday and watch this man doing what he does.
While I certainly wouldn't do a lot of what he does in the show it's important to remind ourselves that we see only what the camerman shows us. Bear on the other hand has a 360 degree view of his surroundings.
As far as taking unnecessary risk. There are numerous tales of people having to take great risk to walk out of the wilderness alive. Some that come to mind are Ernest Shackleton, The Lost Boys of Sudan, Aron Ralston, etc.... Sometimes you need to take risk to main gains. While we're in front of the television we're not presented with all the options, or te lack of options that he is while out in the wilds.