Her "good works" were not entirely selfless.
I saw a programme recently about her and the amount of charities with which she at some time associated herself was amazing.
However, it was pointed out that those that didn't generate the required volume of gushing ("Isn't Diana Wonderful") column inches would be quickly dropped whilst those that provided the best media coverage (walking around in front of the cameras looking fabulous in anti-landmine gear whilst nowhere near any mines or embracing AIDS victims in a foreign hospital) were milked for all they were worth.
She was far too calculating and manipulative for canonization.
I meant Mother Theresa , not Diana .