You're coming at if from an angle of fixed pie wealth, then yes. It might make inequality and class worse. But if the total wealth on planet earth is not fixed and you can create wealth through technological innovation, network effects and solidarity then no, giving the technologically driven nerds alot of money to do cool shit with hardly makes "he problem of inequality and class worse".
Edit: Also, your WSj article is bullshit. I believed you, but that analysis is a bold faced lie and cherry picks alot of facts to arrive at the analysis. OFC all the exchanges are going to appear to have alot of btc and since they are "Actively" trading it, that's the only accounts showing up on the analysis. Most of the BTC owners are maxi's - they don't move or use their BTC. Look at a real wallet distrobution and exclude sitoshi's old wallets cause everyone is pretty sure those are lost to the world. BTC distro is ALOT more decentralized than the USD.
Edit: Also, your WSj article is bullshit. I believed you, but that analysis is a bold faced lie and cherry picks alot of facts to arrive at the analysis. OFC all the exchanges are going to appear to have alot of btc and since they are "Actively" trading it, that's the only accounts showing up on the analysis. Most of the BTC owners are maxi's - they don't move or use their BTC. Look at a real wallet distrobution and exclude sitoshi's old wallets cause everyone is pretty sure those are lost to the world. BTC distro is ALOT more decentralized than the USD.