I'm not looking at just the BRK'A article. Im talking about wealth in general. And to answer your question I quoted. that's like asking if someone who plays in the minor leagues is less worthy then someone that plays in the MLB...Depends on how you define worthiness.
Many investors are in mutual funds, and the funds trade. They may call it "buy and hold" but it just means someone else is doing the trading. Berkshire trades, too.