Standard of living is not the only thing that affects hiring prices and commission prices.
As a swedish person, I pay 33% in taxes (as long as the wage is within a certain bracket. If you are a high income individual, there is a higher extra tax on any income that exceeds the "limit" for regular taxation. Don't get confused, though, that extra tax does not apply to the income below the limit so there is never a situation where someone gets LESS post tax by having a higher wage).
And that's just if I am hired by a company outside europe (i cannot advice anyone on companies within europe as they have never been on the map for me). If a private person in the US wanted to commission me, I would also have to pay another 25% in service tax.
So if anyone ever attempts to commission a scandinavian and you think our rates are high, keep this in mind.
Oh and, sidenote, that tax may sound torturous to you americans, but we get good shit for it. Mostly free healthcare, free mandatory school until age 15 and after that mostly free or very inexpensive studies (no ridiculously high college tuition fees), good welfare, good parental support and tons of parental leave to stay home with the kids... The list is long 