So sinful activities, it is punishable. You cannot violate the laws of nature. Prakṛti is very strong. Daivī hy eṣā guṇamayī mama māyā duratyayā (BG 7.14). Just like the government has police department, military department, law courts. Why? Because not all the citizens were good citizens. There are many outlaws. So more or less, whoever is in this material world, they are outlaws. Outlaw means they do not abide by the laws of nature, and therefore they are punishable.
The first punishment is that we have got this material body. This is the first punishment.