There are two benefits to creating high demand for bitcoins. The first and obvious benefit is that you'll end up with a wealth of bitcoins. The second and more subtle benefit is that as demand outstrips supply, people will exchange local currency for bitcoins which will allow you to more easily exchange your bitcoins for local currency.
High demand in this case is not caused by a new wave of people coming into bitcoin, also we are already way pass that stage for bitcoin. Everyone in the world knows what bitcoin is now, noone has no problem pinpointing why they are not invested in bitcoin, it is not some obscure small thing anymore, there are talks of ETF for christ sake so believe me when I say this, there is no more new wave coming in.
No, this new high demand caused by the incredibly low price, of course the price could still go even lower but when a huge whale sells all his coins there are still some other whales who keep on buying bitcoin as well, which results with bitcoin still going down because of the whale selling but the demand looking higher because of other whales getting cheaper bitcoin.