What you said about people who force themselves to gamble so they borrow money is not from the true principles of gambling, because basically people who gamble are those who want pleasure, and of course they have to have money first before gambling, if they insist on borrowing money. In my opinion, that is beyond the limit, like how can he be responsible in gambling, just making a deposit using other people's money.
It might not be the true principle of gambling, and you don't also expect every gambler to follow all the principles of gambling. There are some gamblers whose purpose for gambling is only to make money and not to satisfy any pleasure, as you called it. Some people think that since gambling is just something that they can luckily get money from, they would always try their luck, and the way some people act, they can risk any money that is not their own just to make a sure bet which is not usually sure.
Good or bad, losing or winning, it's definitely not a chance that you mean, but people who have good responsibility in gambling, don't care if they win or lose, because in the beginning they want pleasure, not winning, winning is a bonus, and definitely using money they were prepared to lose.
Yes, I really agree with you on this. Some people don't care if they win or lose in gambling because, from the start, they did not only conceive of winning money as the only aim for gambling.