Why does it matter that Sweden's industrial unions want a 4.2 percent pay rise?

Sweden’s industrial unions are demanding pay rises of 4.2 percent next year, but why is this important, even if you work in another industry?

Why does it matter that Sweden's industrial unions want a 4.2 percent pay rise?
Sweden’s industrial unions are demanding pay rises of 4.2 percent next year, but why is this important, even if you work in another industry?