After the events of The Phantom Menace why didn't Amidala or the jedi simply go back and buy Anakin's mothers freedom?

I mean he destroyed the control ship so he's a hero to them of sorts. Amidala, as Queen, could've said OK as a thank you I'm sending a delegation to Tatooine to buy your mother's freedom and she can stay here on Naboo.I understand the jedi shouldn't have any attachments so that's why they wouldn't do that but again hey before you begin your journey we want you to know that your mother is safe and well and not a slave any more.Is there anything in canon as to why she remained there as a slave before eventually getting married off? via /r/StarWars https://ift.tt/2Orw0ye