If you really want to solve the problem, yes. If you would rather only half-solve the problem, then only do a subset of that.
But what if the population of said country considers what you're wanting for them an even bigger problem? Which will is more important in your view, yours or theirs?
I support rational, humanist, non-subjugating (in that order) government. That is not slavery. That is freedom. Usually there is some dictator like Saddam who is "perfectly fine with making decisions for other people and taking control over their lives", so it's a simple matter of removing him and you can half-solve the problem.
I am fine with a country paying a blood price to obtain freedom. I'd be willing to sacrifice 90% of Australia to avoid living under a dictator like Saddam, which I consider to be state-slavery. I don't mind having an administrator like Paul Bremer if for some reason the Australian population have been indoctrinated into Nazism etc. Based on that, I follow the golden rule and apply the same standard to other countries. Is your freedom so unimportant to you that you wouldn't be willing to pay a blood price to obtain or keep it?
There's a difference between me (or the country's own people) stepping up for what they want, and sacrificing their lives for that, and between you sacrificing their lives for them based on your own views of whats best for them.
Living under dictators is a form of slavery too, in my view, so i agree with you. I understand what you're saying. Yet what you're suggesting also seems a form of slavery to me, its just your version of it. Your idea of a well and functioning society. I understand you want the best for them, but then so did the people who regulated slavery centuries and thousands of years ago.
They too were trying to make life better for those who were already living under horrid conditions. If you look at it from my view, i see little to no difference in both scenarios. You're going about trying to deal with a fact of life; that some people are living under horrible conditions and having their freedom robbed from them.
The only possible difference between you and them in my view, is that in your case its actually worse, for three reasons:
1) Your own argument, that we should know better by now.
2) That you're willing to make those decisions to the point of actually sacrificing lives of people who are not willing to die, let alone be killed by you.
3) In my view, such approach doesn't always (to put it lightly) actually make the country better at all. Such meddling often has terrible effects. So practically speaking, in some cases you're actually making things worse.