How does China approach this?
They finance projects with terms that drive business to Chinese companies. The Congo gets a highway. A Chinese construction company makes a buck. The financiers make a buck. Business relationships are created and the people who get the highway use that highway to import Chinese goods.
That's how it's supposed to work, when it works. I'm sure it's gotten better with time.
https://i.kym-cdn.com/photos/images/original/001/486/992/0f8...
Clearly they don't. They don't tend to occupy other countries, not outside of immediate territorial claims like Tibet (if you think that constitutes an "other" country)