In addition to mytailorisrich's comment, this is a vacuous description of Sweden's economy because many of its new billionaires are operating in a global technology and finance economy that wouldn't exist without US capitalism. If a Swedish company lists their IPO on the New York Stock Exchange and the founder becomes a billionaire, they became a billionaire via the American economy, not solely the Swedish one.

I suspect there is effectively a "negative externality" of income inequality, where Swedish residents can enjoy America's horrible shareholder-first corporate culture, without directly screwing over the Swedish poor. To be clear I am not trying to say that the Swedish are exploiting the US[1] and the Stockholm exchange does make plenty of billionaires (Ericsson is listed there). But you can't consider, say, Spotify to be a Swedish success story in isolation.

[1] In the precise same sense that most US corporations are not "exploiting" Delaware.