User blog comment:Jrotc193/Upgrades/@comment-4933386-20130624100628/@comment-7418318-20130624102749

Sure, but a smart person never forget's that there are always consequences for their actions.

If Laxus really had succeded in killing everyone in Magnolia with Fairy Law, he would have been executed for mass murder and all his aims would have been forfeit. No amount of corruption or greed can account for such a monumentally foolish act. Actually greed should even have counteracted that, since he would have lost everything - including his future and life - if he had succeded.

While the Fairy Law might be blamed on going berzerk, activating the Hall of Thunder (which would also have destroyed Magnolia and killed it's inhabitants) and not stopping it when he didn't get a response from Makarov were reasoned out decisions.