Didn't know where else to ask this question.

Why would someone purchase domain name privacy either through a proxy service or whatever and then turn around and purchase a business listing?

Doesn't that defeat the purpose?

The reason that I am asking is because one of my clients, when they first got their domain name the agent that they used to register it had told them they needed to purchase the domain name privacy to protect them and that the business registration was a must because they are a business.  He also had them register the domain for 5 years.  Believe me it cost them a bundle, and everything was just automatically renewed this past month for another 5 years.
They have tried to remove him as the agent of record.
I am perplexed by this idea that you register it private and business.

It sounds to me that you are getting your wires crossed.

When you resister a domain, you can have your details kept hidden. This is free for personal domains(eg .name, .me.uk), but charged for on comercial domains (ed .com).

The "business listing", i expect, is a service offered by the registrar for web-directory listings and has nothing to do with the registration of the domain.

Northie wrote:

It sounds to me that you are getting your wires crossed.

When you resister a domain, you can have your details kept hidden. This is free for personal domains(eg .name, .me.uk), but charged for on comercial domains (ed .com).

The "business listing", i expect, is a service offered by the registrar for web-directory listings and has nothing to do with the registration of the domain.

I understand the need for keeping personal details hidden. 
The business listing is offered by enom, godaddy and a few other registrars now.  It is part of WHoIs business. The only difference is that if you register a domain and go for the business listing, there is a map attached to your whoIs records.  So I am still confused as to why hide it and reveal it.

For the proxy listing as it is called with godaddy, he charged them supposedly at a discount of $10.per year.  The business listing, he charged them $12.00 per year.  He told them at the time that because they were a business they had to have this listing.  It doesn't make sense.