I heard people said that Bitcoin's profit is higher than profit of drug dealer, weapon dealers or profit of real property or any kind of stocks. Is that real ?
That can be truth if you are a very early adopter. But it is easy to see in the past. Today we all can say what a good investment it was to buy btc as early as possible. The task is to find something to invest in now.
By the way, what if you invested in Google on its early early stages? Profit could be ven higher than from BTC. But can we say now "investing in Google is more profitable than selling drugs"?
Well google's initial investment value was way bigger and higher than that of bitcoin which you can even decide to buy one dollar and keep. It is just the difference that the other multinational cooperation out there which are more profitable than bitcoin investment requires huge capital to start and that makes bitcoin ideal for all classes of society.