Luck and chances work ''Pari passu'' because it's luck that breeds chances, if you are not lucky then you probably not going to have the chances of winning and chances is talking about the probability of two things happening which is either you win or you lose so definitely, one cannot work without the other in gambling.
I believe people who gamble on sports may understand this better since sometimes in sports betting some gambler's prefer to go for the smaller odds that usually have a higher winning chance and sometimes they can still end up a losing game however some prefer to go for the big game with big odds and smaller winning chances
The fact is that those who goes for the smaller odds are likely to get the win because that is the odds that comes after the bookies have done several analysis and scrutiny about a particular game and discovered the side that will possibly get more advantage than the other. Betting on big odds is the real gambling which is done for fun because as a gambler who is gambling on big odds you already have it in mind that it is unlikely to win but if it does it will just be a surprise to the gambler and big odds doesn't work often as the smaller odds does.