It all comes back to how we manage our emotions and the responsibility we have in gambling because in the end it all comes back to that regardless of whether we are winning or losing everything will be the same where self-control becomes an important factor to have in the end.
Self control is a matter of importance in gambling.
Those that have been winning for so long and yet with a single flow of emotion can lose all of those money on an instant. This is absolutely true and getting to huge losses will make someone understand that they need to control themselves while they can.
It's hard to check on ourselves when we're on that moment of losing because we are losing our minds and so it triggers our emotion to do some careless actions.