Thanks for noticing this little birdie and wanting to help. That said...
You can’t know the future. The person who gets a bird to be a companion for another might give the bird a better quality of life than someone who enthusiastically gushes in the store, then gets bored in a month and starts ignoring the bird. All you can do is offer them the chance to buy a book that seems good, and maybe give them the URL of Parrotforums so they can come ask questions here. Offer as much support and encouragement and information as they will accept.
You can’t save them all. I don’t mean to sound callous, but there are thousands of birds suffering at the hands of ignorant humans. As long as as parrots are considered desirable and valuable there will be people who breed them, trap them, sell them, and buy them. Some will live happy lives, but parrots are not domesticated animals and even in the best human home life is a compromise. I don’t believe the cycle will be broken until the wild populations of many species of parrots are extinct - but we have to hope, right? And do what we can to educate humans and to help the parrots we can.
When you are ready for it, you might consider fostering a parrot in need. People often bring parrots back to the pet store because the birds have developed problem behavior due to neglect or mistreatment. Maybe you could help rehabilitate one of these birds and find a good home for it. Maybe you can learn to work with traumatized birds at a local rescue, and foster or adopt from there. It’s better to save a bird in need than to support the parrot trafficking industry by buying a parrot from a store.
Take advantage of your position to notice where the store gets bird’s from...investigate how the breeders raise the birds they sell you...what does the store do with birds that don’t sell..what do they do with birds that are sick or injured...there are organizations that can help stop bad actors if they can be identified. And you can be a source of information to the public.
Lastly, I don’t believe the smaller mammals like chinchillas form lifetime pair bonds the way humans do. They will attach to a loving human in a new environment...the problem is you can’t know how the person will treat them in the future. So keep him for now and start learning all you can about caring for and rehabbing parrots, and when the time and tide is right, launch!