I know casinos have the power to ban a player when the compromised their rules but sometime it is done in an unlawful manner without giving a second chance. I know being ignorant is not a leverage to pardon a player but some casinos are known to ban players especially when whey have huge amount of funds in their accounts.
You know that most accounts that break a casino's rules do it many times and maybe with different accounts. A company does not arbitrarily ban an account as it possibly affects their business from income to reputation so if a decision is made, it must have reasons behind.
Assuming that if a company gives a second chance to an account - that known as breaking ToS many times by many accounts - what will you expect that person will respect that company and will not break their ToS again?
It's almost unlikely that person will respect and value the given second chance but will more likely to repeat what he did in the past while the company might suffer some extra exploitation and loss, so second chance is not good for their business.