Decency and respect in general is a two-way street. If your boss is an asshole and the company doesn't give a single lonely shit you don't owe it "common decency".
It's not like that sort of company puts a single dime in "common decency" when time comes for layoffs or firing people, instead they get company security and their stuff shoved in a cardboard box.
If the company is decent and you're quitting because you've found a great job or you think you deserve a raise and they don't agree, sure put in your two weeks and everything. The article specifically talks about bad bosses though, so that probably ain't the subject.