Mixing work with play

I work in brand promotions and my company has a facebook page. Most of the staff (about 200) are friends with the company and there has never been an instance when someone has called in sick (who hasn't actually been sick) and work has caught on. I have worked at the office for three months now and they are just too busy to look on Facbook to see whos telling lies ( alot of people have a lot of excuses to not make it to work weekly). Major firms do not have the time to chase people around Facebook; the important thing for us is that the shift gets filled and deal with that person later ( by not offering them anymore work). If anything when the account managers look at photos on facebook to makes it easier for them to decide who has the right look for the next campaign. In such cases having your work as a friend on Facebook means you can get more jobs becuase they want the most recent photos.Weight gain/loss, changed hair colour, piercings, tattoo's could mean that they no longer look the same and if a client wants only blond haired girls for a job , it's very easy to see on Facebook whether the girls that are suited for the job are still blond. It makes it easier for the staff to see photos of campaigns and how successful the jobs were; in a way Facebook is a good way for the client and staff to see results on every campaign.
However I did a few jobs for different agenies and I can't upload those photos onto my facebook becuase the agency I work for the most will see and I could risk doing major campaigns for their big clients.
I think that IF anyone accepts or adds their boss or co-worker on Faebook and they get caught for been out allnight and not performing well on the job , or faking being sick it's their own fault for mixing work with social life. If one adds their boss on facebook it should only be fair to prepare and face their consequences.They should watch what they upload or write on their pages. therefore it might be a good idea to keep personal life and work separate.