You don't always need to blame corruption. Inefficiencies of all kinds (due to lack of education, lack of infrastructure, etc) also cause most 3rd world countries to have this kind of situation where services are paid for at least twice, once in the form of taxes, and then again to private companies that compensate the lack of quality of the public ones (education, health, security, transportation, etc).

The only "advantage" these countries have, is that labor is cheaper, so some kinds of labor-intensive activities could in theory be as good as, or even better, than first-world ones (other than climate-related activities such as farming, which naturally benefit from better sun/weather). But the overhead leads to overall worse outcomes.

Corruption does make it worse, but even in a corruption-less environment, the other inefficiencies might still lead to a scenario similar to "pay tax like first world countries but get services like poorest of the poor countries".

Of course, if only all of these privacy-destroying technologies and surveillance-state apparatus could be used to detect corruption, maybe one could have a technological corruption-less dystopia where every figure of power is tracked all the time, as is in a reality show? (In the worst case, we might see some privacy-restoring contraptions emerge from the dynamics of such systems.)

Inefficiencies are often the consequence of corruption or a mindset/culture that fosters favoritism vs merit, because not everyone is either smart enough to want to improve their companies or is willing to do what it takes to do so. Which could mean not hiring that friend that is not good, or that brother in law that shouldn't be doing this job, etc. Every action has a reaction, even a small one. You just have to live fine with it and accept it. Not saying we need to become machines, just saying we shouldn't complain if only friends of friends work in a hospital and maybe 1-2 doctors are good... And no, I am not talking about "I referred him, and he is good for that position". I am talking about people who have no clue and are hired nonetheless, just because of family or friends.

I come from a country where all these issues exist and one thing I learnt: it has nothing to do with taxes. On the contrary, the more you raise them, the more tax evasion will be. And the more you'll need to bribe or cheat the system.