people who do useful things with their hands. mining gold, or building houses or roads, or designing cars, or writing books, or making paintings, or writing computer code. anything that produces something tangible.
financial analysts are even more useless than psychologists and lawyers. all they do is buy and sell stocks and currencies and commidities, so they can make money from other people without doing any work.
if the central bank types a couple extra 0's into the computer, it increases the amount of money in society, but not the amount of wealth. wealth is not equal to money. wealth isnt created by making money. its created by making other things. you can only buy existing wealth from other people with money, not create new wealth. this applies to any currency, also bitcoin.