What i understand about each of them is that. The first brother gambling store operates typically by luck and a gambler is gambling online so you don't know who to blame when you lose your money. But the other brother has a store that you gamble with other gamblers. It's a one-on-one gambling environment where you just don't rely on luck to win but you have to be skillful in it. This is why there must be a winner and a loss in gambling but there are more physically losers in the second gambling environment.
Most persons prefer losing money online since they cannot go and meet anyone for refund. But whenever they lose money physically, they will always know who to meet and create a scene or fight. This is part of human nature.
That is a nice way to put it, when people face adversity of any kind, they like to blame an external factor in order to avoid taking responsibility for what has happened, and with lotto this is very easy as you can always blame your bad luck for losing so many times in a row, but when it comes to cock fighting this is not possible, since the ones that know the most about it should be the ones to win, so in that case the losers cannot shift their responsibility away so easily and because of it they prefer to blame the owner.