I must disagree with your assessment of Hegel. Folks from the outside often see "philosophy" as something without internal divisions (like people from the outside of any culture). While it's true that 'very many' (for some values of 'very many') think Hegel is a fraud, he's still both popular and influential. I am amongst the ones who don't think very highly of 'continental philosophy' (of which Hegel is an example), but I nonetheless recommend him at times. Specifically, some folks think Marx had interesting things to say about alienation, and I have to point out that Marx pretty much just lifted those parts entirely from Hegel (though mostly reversing their spin). As continental philosophers go, I think Hegel is pretty solid (compare Heidegger).

But yes, folks that use terms that lump Isaac Newton and Dan Dennett together with Hegel and Marx are clearly doing something wrong.