Mr Fiske, It seemed to me that the population of Leirooine, a shade of its former glory, and lacking in resources after strip mining, was going to be unable to successfully pay its taxation on time. As such I have taken the pre-emptive measure of making the world a more profitable one, and a more economically viable one to the Empire.
The world may now be used by the Galactic Empire for the disposal of any waste for the future, toxic and otherwise, and the economic value of this equates to roughly 3x the tax the planet would normally owe. Meaning that in addition to no longer requiring any Imperial money for the policing of the planet etc the Empire gains a valuable place to put its waste in perpetuity.
In addition to this, I must highlight that the flood was as a result of divine revelation, and as such should be taken to be an expression of freedom of religion, all the people of Leirooine would have wished to fulfill the will of Revan. And indeed they would also wish to sacrafice themselves instead of defaulting on a tax payment. The fact it allows the Empire 3 times our normal tax rate in waste disposal is purely incidental.
King Ribaldequin Leiro