Is playing the Auction House morally wrong?

I was having a conversation with a few of my guildies, and one of them said he would rather go out farming than playing the AH. He likened it to being a banker. I don't really agree with him at all to be honest. Unlike the real world where people are disadvantaged at birth, WoW is an equal playing field which is limited by your time investment to the game. From gold to gear, everything is determined by how much time you put in the game. Playing the AH takes time, and I don't see why it's wrong to be rewarded for spending your time in the Auction House than say in a raid. At least with the AH your destiny is in your hands, and not some egotistical pug raid leader or a drop percentage.

Furthermore, I don't think morals have any roll in video games. Sure it's in our best interests to be nice so we get picked to raids, or make friends but that's as far as it goes. The WoW community is extremely selfish by it's very nature, the entire game is built around being better than the person next to you. Apart from the 20-30 people I have a quality friendship with in game, I don't owe anyone else anything. It's not like they will be going out of their way to do me favours, so I don't see why I should send them all whispers "hey don't buy this item now, its cheaper on Fridays".

So far this patch I'm 20k Gold up, not counting any outgoings like spending 1k on the new Kirin Tor ring or repair bills. The vast majority of this has been made by purchasing an item on the AH, modifying it, and then re-selling. Most people should be aware they can do this change themselves, but they are lazy and willing to pay more for the final product. It's like paying for a service and not the item.

I will admit that most of my views on the game are a complete 180 from my behaviour even a year ago. I was a very social care-bear style player, but making a shift to progression raiding has changed my opinion on many elements of the game and community. Ultimately we will only care about what's in our own interests, which is not necessarily a negative thing. Most people deep down only help guildies because it benefits them in some way; helping that person will help your guild progress in the future, or you might be able to call in favours in the future. I think it's naive to think otherwise.