It's not a simple picture. Critics have complained that Cuba has begun to sacrifice the health of its citizens at home to make money sending medical workers abroad, and the conditions for these medical workers themselves have been criticized
I.e. it doesn't seem that they sacrificed a lot.
Now if we're talking about innovation, technology, culture -- THEN there will be wistful comparisons to the US
Which unfortunately, these days, is dragging a lot of countries down.
I see Australia and Canada doing it every day, and it's actively making life in those countries worse, because it's coming "down" to US standards.
No data, no study on the effect.