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 ?
This is quite relative as it depends on the effort of the person involved in making some profit from Bitcoin or from drug dealer, weapon dealer or stocks. For instance, if a person invest in BTC by buying 5 BTC at a price of $7K/BTC and sell at a price of $20K/BTC, such person will make huge gains than a drug dealer or someone who is into stocks and invest only some few dollars.