It does not matter what government is in place anywhere regarding the corruption that will happen due to drug trafficking.
There is just so much money to be made. The temptation is overwhelming as we see in the news weekly.
I tend to disagree. People I know who work in government departments at a lower level tell stories of entire departments being frog-marched out of the building, police coming in an arresting people at their desks, honestly people who work for government are scared of being involved in corruption. Which is very very different from how things used to be.
And the very fact that newspapers feel confident to report things that someone would literally have been shot for reporting (ie. Nuria's father) not so long ago shows that the tide is turning.
The drug trafficking is very very discretely done let's face it. And the kind of people who traffic 500 tons of drugs per year like everything to appear squeaky clean from the outside, nothing to see here, move on move on.