[dntbnmpls]

> then why don't the socialist/communist countries develop the drug instead?

Because those countries are attacked and undermined relentlessly by a much larger nation(s)?

There isn't a single tool to solve every problem. Sometimes you need capitalism, sometimes you need socialism. Countries that are purely capitalistic or purely socialist have failed miserably. The wealthiest and most successful nations on earth have all employed a mix of socialist and capitalist ideas.