Courier 6: Savior of the Mojave, beheader of the NCR, and Savior of the Legion. Why did she do it?

She seen the weakness of the Mojave, the flawed intellect of House, the failing regime of the NCR, and the lawlessness. It needed reform. It needed structure. So what if it means slavery? So what if means torturing and crucifixion? Necessary means to a glorious end. And what did she gain? Titles such as 'Courier 6:Legion Savior' and 'The only intelligent woman' and:

The High Priestess of the Legion

Harriet Turner

Ave, true to Caesar!