On the contrary. I'm happy to let Dropbox add a smart, talented, and connected person to their board. I'll keep using them and the others mentioned.
That's really the point though. This only shows that Dropbox is easily replaceable, and the others aren't. It doesn't show that people suddenly become more principled.
Have you ever tried living without search engines? It's tough. Have you hosted your own email? It's a hassle and emails get lost constantly.
What if I want to boycott the phone companies? Should I quit using a cell phone?