Hardwork for what? Hacking the system? I guess it is just applicable to online sites or other electronic based games which includes machines or program. Card game can somehow be predicted knowing it has a limited numbers existed. But games like roulete and other lucky games cannot be hacked even you work hard for it so it doesnt makes sense.
I don't know anyone can hack the gambling sites or not?
But if they can then they can be one of the richest people in this wrold so I believe any kind of online gambling sites cannot be hackable.
This depends on the gambling site we are talking about.
There are a lot of gambling sites online and some of them are trusted by a lot of gamblers all over the world. I know you know there are a lot of times that gambling sites and exchange are hacked and that means they can be though not all of them. I am saying this depends since there are times that gambling sites and this exchanges are vulnerable and hackers can find a way or maybe a small hole to get into to hack their sites. That is the reason a lot of sites are being careful to what they are doing especially this gambling sites and exchanges.
Yes hard works will always very important but more than hard works we need smart work also and if you do only hard work you will be very tired in one place but when you made smartworks it will be very good to manage the hard work also that's why hard work and smartwork both are important for any job.