He only helped the poor if the MLM-Ponzi scheme doesn't collapse and the poor aren't left holding the bag - which requires the remainder of society to be stupid enough to be the latest adopters, holding the bag, and then giving up a substantial amount of their buying power - in part because they're now competing with the extra money earlier adopters have because of the wealth transfer. Otherwise the poor then have transferred their actual money to earlier adopters who sold them the Bitcoin at an ungrounded-artificial price - which they're not going to get back and their Bitcoin then is arguably worthless, which it becomes when no one's willing to put more money in - or once there's a bank run and there aren't billions of USD in reserve from large institutions to try to counter a crash of future bank runs.

Also, the person, let's say they bought Bitcoin at $100 - and they gave it to them at $20,000 - then what they gave is 5% of that amount - and the full amount is actually realized/then paid for/"donated" by others; sure they potentially gave up 90% of the Bitcoin if they could have even realized a significant amount of that without influencing the price too much.