However, I believe that if the problem of corruption can be addressed at a young age, every country's degree of corruption will significantly decline in the near future.
In my country students are taught from a very young age to not steal, or tell lies. They are taught to be honorable people and be trustworthy. Students are taught to be good people from a very young age. I mean, there are even a few subjects that teach students about being better people in society. All these don't change anything.
To me, the only way to fight corruption is to have a system that works. Human beings would always look for ways to exploit a situation, but if there is a system that can check and balance these things then corruption will be reduced.
A lot of us that blame governments every day for stealing public funds will most likely do the same if given the opportunity. Funny enough we even do it in our own little way. I'm very certain those colleagues of yours blame the government every day for bad leadership but they're doing the exact same thing.
There are very few people in this world that won't use their position to benefit themselves illegally if it is certain that they won't be caught, or nothing will happen even if people found out able it.