Hot take. Angra Mainyu is the best thing happened to Sakura

He gave her strength to purge all those that make he life hell, like Zouken and Shinji, to make a little warning on the world which love to sacrifice the innocent few for the greater good. She receive no help from anyone else.

Also relieve her of her physical pain, judging from her conversation with Rin at the end of HF.

It remind me abit the ending of Zankyo no Terror, about those who's swallowed by their ill fate cry out to the world one last time.