I am one of those individuals who enjoy his privacy. Maybe that's because I as a journalist and opiniongiver am the recipient of countless pitches over multiple channels. In my off-hours I don't like getting calls, marketing mail of any sort or being tracked online, nor do I fill out forms or surveys; LinkedIn is the extent of my open social networking.  

If I have need for companies' goods and services I will determine that and check firms out first--including on social media sites--and contact them i.e. "don't call me/I'll call you." I hear about new items and deals via the Web first, TV second and the local free paper third.