Cost of doing business
If it is cheaper to pay a penalty, than to hire a proper security team, then we will see more and more leaks.
It's not that anyone actually cares apart from the victims.
In the Keynesian spirit, every leak creates jobs, so government has no incentive to actually do something about it, especially when law enforcement is busy chasing another pimple laden basement script kiddie and have even less time looking into corruption, fraud and other pastimes of the officials.