For making, importing or dealing these drugs, the penalties are much more severe. The severity of the penalty depends on the amount of the drug you are found with, if it was being sold, and if you have prior convictions. You will get a criminal record if you are found guilty of possessing, making or dealing these drugs. This makes it difficult to get a job, a credit card, or a visa to travel to other countries. When a network is targeted by law enforcement they are often the first to be identified by intelligence.
Dealers provide a service - but it is an illegal activity and extremely risky.
To be known as a dealer increases that risk greatly.