I agree that killing a lot doesn't mean being more powerful, but for example the murder of an inconvenient judge like Gratteri would be almost unthinkable today
Few years ago Cosa Nostra wanted to kill Nino Di Matteo, i don't know if u remember that , explosives were sent from Calabria, Matteo Messina Denaro said same people who wanted Falcone and Borsellino dead ordered it and that it must be done. Police learned about it thru informant and managed to arrest them and seize the explosives. But it's just stupid, if they do anything like that today , they are done, insane heat will bring them all down like it did in late 80s early 90s