One factor is that Israel generally refuses to extradite their citizens who are accused of crimes in foreign countries. So they effectively operate with a certain level of legal immunity.
If there is no punishment for shooting school kids with a sniper rifle, there isn't going to be punishment for any lesser evils.
Yes, in general Israeli intelligence and hacking groups tend to enjoy far fewer consequences when they screw up than their Western counterparts, which then allow them to be far more aggressive.
hell and america will send israeli's that commit horrible crimes in us territory back to israel before anyone can actually consider prosecuting them.
I was only really aware of the many high profile cases of sex offenders exploiting this, I never thought of the cybercrime angle.