Piracy Sites can make our lives easier by allowing us to access and download software and other things such as movies, shows etc without paying for them.
However Piracy sites can also affect the economy negatively as well.
It's argued that piracy has a negative effect on the economy by reducing sales in music/movie industries and many other facets.
They estimate that as much as $200 and $250 billion per year is lost due to piracy, as well as the loss of 750,000 American jobs.