We have a very broad and deep legal system - Halacha - that covers most cases.
Temple-hair wigs -- the question isn't "we shouldn't buy it because I don't like how they made it." The question is that the Torah says to get rid of anything (in your possession) connected to idolatry, including items sacrificed to idolatry.
We also have a prohibition called "facilitating sin." If someone's manufacturing practices involve sinning (whether it's a violation of the 613 laws of the Torah for a Jew, or 7 Noahide Laws for a non-Jew) because of me, then my giving him that business is "facilitating." If he's selling to a million other people, then I'm not "facilitating" per se.
We do have laws on the books in a handful of cases for penalties, for instance: if a Jewish shopkeeper owned bread on Passover, I'm not allowed to eat it afterwards. Depending on the circumstances, food cooked by a Jew violating shabbat may be prohibited.
If you don't like a product or its manufacturer for whatever reason, you're free to shop as you wish. But a broad, overreaching "prohibition" on "anything non-Torahdik"? Good luck trying to quantify that. The best you could hope for is the attitude of "stay away from the distasteful."
The Talmud is not afraid to quote scientific knowledge that was obtained (by others) through horrific human experiments, by the way. Once the knowledge is there, it's there.
Lastly, as you'd asked on animal experimentation for cosmetics (I have no idea what "non-essential medications" means) -- Rabbi Yissochar Frand expressed uncertainty about whether this is permitted, and Rabbi Yitzchak Breitowitz felt it wasn't.