A side note, but it's shocking how people are unable to believe that others are capable of making informed choices. Case in point: I use Facebook. I often get people hounding me- "don't you care about privacy?!?", "Facebook is using your data!"
Yeah, I know. I don't mind. The way I see it, privacy is the new currency- Facebook isn't providing me with a free service, I am paying for the service in the form of targeted advertising. And I am OK with that.
And to go back on topic...
How could any business person in a sane state of mind choose to share its data with some 3rd party company.
Because it's very difficult not to? I have a database on AWS- Amazon has access to that. Doing anything else would be very expensive. Even if I get my own server, whatever telco provider I use for the connection could easily sniff through my data if they wanted to.