Hardly.
A child molester can get all that information without being an employee in the company you're afraid of.
A child molester can get all that information from the kid's own facebook page, twitters and everything else they now do online. He can even get it from a kid's text messages. All he has to do is get any type of texting phone and start dialing local exchange numbers randomly til he gets a kid.
It's not always the child's internet information either. Many actually get the information from parents and older siblings. Parents often post pictures and reveal too much detail about their location when they chat or post on web sites. I flinch every time I read a parent talking about what sports events they drop their kids off at, or post all those pictures.
Many child molesters just cruise websites, and get plenty of information to find a kid. They don't have to do anything so complicated as get a job in a service company.
If they don't cruise websites, they can just cruise the snack bars and video game places where kids hang out, or stand on the corner opposite the school. Or they can get a job with a church as a youth activities coordinator, or get a job as a baby sitter.
That said, most of the crimes against children are not committed by strangers, but by people the family knows...and trusts.
I think concern is best placed first, where concern is most warranted, not on the more unlikely threat, but the most common threats, which involve easy access, not a complicated scheme.
I am totally in favor of monitoring ALL kids internet access and activities, and I think it would be a fine thing if no kid under 18 was allowed to have a web page on any social site, twitter or text on a phone. I think that would be FINE. But it's unlikely to happen. So parents need to be careful of MANY things, but I think in looking for the distant or unlikely threat there is a possible danger in overlooking the more obvious threats closer to home.
Those who are concerned about internet child safety can participate here :
http://www.unh.edu/ccrc/
That website also has information about prevention of internet crimes against children as well as information on other crimes against children.
The relevant American Bar Association page:
http://new.abanet.org/child/Pages/default.aspx
For internet technical assistance:
http://www.icactraining.org/
FBI site on preventing crimes against children:
http://www.fbi.gov/about-us/investigate/vc_majorthefts/cac/crimes_against_children
Extensive resources here:
http://www.missingkids.com/missingkids/servlet/PublicHomeServlet?LanguageCountry=en_US