Comment by Matti

"But they haven’t stopped Swedish entrepreneurs from building giant firms like H&M, Ikea, and Tetra Pak."

Look at when the mentioned companies were founded:

IKEA - 1943

H&M - 1947

Tetra Pak - 1951

Then look at the historical tax-to-GDP ratio chart here:

http://www.ekonomifakta.se/sv/Fakta/Skatter/Skattetryck/

The companies were founded in low-tax, pre-welfare Sweden.