I hated it for a lot of reasons but one of my biggest issues was that she wasn't even a GOOD villain. She was a greedy white bytch with a bullshyt "I grew up poor and don't ever wanna go back" origin story who got by because she was inexplicably able to have a group of lackeys ranging from Doctors to high level nursing home staff and inept judges - that she wasn't even paying properly or at all - to do her bidding just because.
At the time the movie starts, her little operation is running smoothly and she's clearly earning enough to step back and still live comfortably for the rest of her days. She was ALREADY set up to never be broke again. Once she gets her hands on the diamonds that becomes even MORE true. At that point, she could've washed her hands of the business entirely and STILL been straight. But apparently her desire to torture old people and their families was her primary focus?
On top of that, she goes against a Russian Mob BOSS with enough clout and $$$ to fake his and his mother's deaths, set them up with new identities going back DEACDES so they can live comfortable lifestyles...and she WINS? With a stun gun and some chloroform no less. Oh and of course after she bested him he basically looks up and says daaaaaaaaaaaamn girl, you've got MOXIE and I like that! Lets go into business together!
No way in hell a Russian mobster that rich and that smart wouldn't have killed her on sight and gave her the Ichabod Crane/Mafioso special (no head, no hands, no feet) before dumping her ass off Cape Cod or some shyt.