I personally do not feel there is anything wrong with someone collecting WC corns if they can and feel so inclined. And this is my reasoning.
You do not find a ton of people out combing the country side looking for WC corns. So it is not like people are out there wipping out the wild populations. Most people that catch and collect them are doing so to improve their lines in some way, whether it be new blood or a paritcularly interesting speciman that they hope may hold the key to a new type. There are a few people who do collect to sell, but obviously that is not the norm otherwise you would see a myriad of adds with wild caughts for sale, which we do not see. Wild caught specimens are definitely not in high demand as the CB morphs far outshine most WC and people are more attracted to the CB's, and without a lucrative market the incentive to catch them for profit is very dimineshed. So, I do not feel that the demand for WC specimens posses any threats to the wild populations.
I am sure that the amount of these animals that are run over on the roads yearly FAR outweighs any impact that collectors make on the species. This is a shame, but an unavoidable problem.
So, if some people really want to add a wild caught speciman to their collection for their reasons, I see no problem with it. Lucky for all of us corn fans, the people who first started collecting and keeping them as "pets" have allowed us to reap the benefits by the present hobby we have. Do we "NEED" more wild caughts to aid the corn hobby? I would say the argument to say NO would be right. But does what collecting that occurs harm the wild population? I also don't think so. Heck, when the first herping of corns happened years back, that was when the pull on the WC populations would have been high and yet it did not dessimate the species.
Given all this and the fact that more are probably killed by people who "hate" snakes and kill any they see in their yards than by the collector and the fact that at least with the collector the snake is not being killed, I have to say definitely no, I do not feel it is wrong or bad to collect them.
NOW if you said people were collecting them by the thousands for the sake of killing them, than yes, I would be up in arms over it. But as it stands, I do not feel I have a right to judge if someone wants to add a WC to their collection. And I also don't feel I should judge if that person is collecting one for the joy of owing a WC specimen. It is no different than us owning the CB ones, just because ours are CB does NOT mean that they are "happy" being in confinement. So, if someone owns a CB corn, they really are not any different than someone owning a WC one in my opinion. It is the care they give the snakes they own that is HIGHLY important.