That would be reported by the news and people would care. Whereas here we get this reaction: "they seized his money and say he is suspected of being a drug dealer, well then i have nothing to worry about - i am not a drug dealer."
Also, it's not just cash they go after. There are plenty of "State v. Diamond Necklace" or "State v. Various Electronics Valued at Approx. $1000" cases out there.