When you're in an urgent need of money, you won't even be capable of thinking about the risks you're taking by doing different tasks. You're not going to think rationally anymore, it's going to be all about having money in your hands. Many gamblers are poor, and think and see gambling as being the easiest opportunity to get easy cash. That's completely wrong, gambling is a way to test your luck and/or have fun while playing it.

though if you are in an urgent need of money gambling can only make your life worse as you would lose everything

Gambling is not wrong at all and I think that we as people are just doing it wrong, we are getting addicted to it.
We make the problems itself and due to that I do not think gambling is wrong.

Gambling is wrong if you are betting in it and lose money...There's nothing wrong with it if you would just watch or dream of big money, but as long as you start to chase it in gambling, that's what makes it wrong.. Gambling is not a game for those who care much about their money whether you are rich or poor...  

lol i did not saying gambling are wrong ,
i said you yourself who doing gamble , don't blame on anything but you ,
gamble responsibly and you will be fine doing this ,
most people gamble for the sake of money but cannot responsible on it.

Agree. Gambling is for matured one! Not for childish one! That games is for big adults! Some rich playing gambling just for entertainment and wasting their money in that games! We can say that it is wrong if yyou cant stop playing on it and you have a lot of loans, debts and you borrows someones money.

I don't think so that someone is playing gambling just for wasting money, you can say that these people are addicted to gambling and do gambling on daily basis. But you cannot say that they play gambling  for wasting their money and get entertainment. Everyone play gambling for making more and more money or bitcoins.

Yes, if someone gambling just for wasting money, he must have psychological disorders.
Even an addicted gambler will not have intention of wasting money but he might be trying to gamble for this purpose, but he may not be successful with his intentions.

If we value money as an essential thing for life, then wasting it in gambling either for entertainment or for making profit should not be acceptable. So, calling gambling as wrong has all the sense.

That's the thing said rightly but you said it in a confusing manner.
We are actually doing it wrong, not by getting addicted to it but taking wrong decisions and when we know that we are taking wrong decisions, we should stop gambling for some time and come back later. That's the way to do it right as we will lose less this way.