I dunno about brita specifically, but my walmart water filter has served me well throughout the years.
Back when I moved in to a friend's house and started drinking his tap water, I would get sick all the time. I knew it was the water, I could feel it. Every time I drank it, it tasted weird, metallic, and I could tell I was poisoning myself.
Ever since I started filtering it, I stopped getting sick. Haven't looked back and have been drinking walmart-filtered tap water ever since.
Haven't been sick in years, either.
It's up to you whether or not it's important. I see your point on whether or not it's possible, and I'm inclined to agree with you.
I'm glad that pretty much all of the artists I enjoy didn't do anything like drug and rape women or come out in favor of oppressive nonsense (as far as we know.)
It doesn't surprise me that the businessmen posing as artists routinely end up being pieces of shit. It's always good for a laugh when the morons who liked their art find out for themselves.