I do not let my friends get away with them thinking they are experts on everything.
Adams turned his fame of Dilbert into his fame for saying things online. I mean he even started a food company! Anyone remember the "Dilberito"??? Seems he was always just looking for more ways to make money. And reading his books it sounded like he wanted to get rid of religions.
So he was human, just like the rest of us. And he died desperate and clutching to life, leveraging whatever power he had to try to save it from who ever he could.