OK let me be more specific:
In Argentina, one of the huge problems is tax evasion. This is a drag on the economy because it hampers the government's ability to control the money supply (and thus inflation), which means that less money can be spent on things like healthcare, education, buitres, etc. without having inflation spin further out of control.
Therefore, the common response here is: we need to plug the holes in the revenue system, so that we can use that money to fund the projects we would like to implement. Let's make sure people pay their taxes!
On the other hand, if we were to transpose this solution to the US: suddenly we get Amazon to pay taxes, Mitt Romney to bring his money back from the Caymans, Boeing gets taxed on its profits, Warren Buffet has to pay more than his secretary... Now we have a whole lot more money in the treasury, and decide to spend it into the healthcare system. The pharmaceutical companies say: great you want to spend 3x as much money? Fantastic, here's a 300% price increase. The insurance companies do the same, the overpaid doctors do the same... and we're still spending the same 20% of GDP on crappy sub-standard healthcare.
In Argentina, this wouldn't be a problem because there is public healthcare, so the state is able to keep the costs charged by pharmaceutical firms, insurance bureaucracy, doctors down to a reasonable level.*
That's why I said the solutions are different for the 2 countries; they have 2 different sets of problems.
*at least in theory; we can talk about what happened with the Illia presidency another day.