Benefits scam?

The Qur'anic verse that sanctions polygamy is in chapter 4, The Women verse 3:
"And if you feel that you will not deal justly with the orphan girls, then marry those that please you of (other) women, two or three or four. But if you feel that you will not be just, then (marry only) one or those your right hand possesses . That is more suitable that you may not incline (to injustice)."
 So we've seen that Islam permits polygamy but, there are conditions that come with it. If a man chooses to have more than one wife he has to treat them both fairly, that means providing clothing, accommodation and living expenses, and  spending equal amount of time with them both. It's difficult as it is in this day and age to pay the bills and make sure the maintenance of a household runs smoothly, so how does the man practising polygamy afford to keep two families? 'Imran' from the video in my previous post is a successful businessman, so he can afford to keep two wives happy. What about those that don't have a large income?
During my online research I've found that the benefits system is a means by which these men are able to have more than one wife. I found an article that says, on the 19th of July 2012 a House of Commons legal brief revealed that polygamous families would get extra benefits in the beginning of 2013. This would mean that 2nd and 3rd wives will receive a single parent's allowance while the original couple will get the married person's allowance. Hold on a minute,  if the benefit is the standard single mothers allowance, how is that any different to everyone else? I mean, there are hundreds of men out there who've fathered children by 2-3 different women, I'm sure they get the same kind of benefits. I don't understand how the government recognises polygamy in all this. I believe that by labelling it a benefit for Muslim polygamists, it has created many misconceptions and negativity for Islam in the media yet again. Many people have voiced their concerns and objections in protest to this, the words outrageous unbelievable and insanity have been used, I can understand their concerns because they obviously feel as though the Muslims are sponging off the government in order to provide for their extra families. I think that both the government and the media are to blame for giving misleading information, likewise I think that the men in polygamous marriages are also to blame. If they can provide for their families from their own pocket, fine, if not they shouldn't be allowed to exploit the benefits system.