Not just money and trade, that's exact the issue China faces. They are providing plenty of money and trade, it's just that retarded and corrupt leadership turns it all into yachts and mansions. China needs influence, some level of political or cultural control and a really big stick that they are willing to wack a country with if they get out of line.This attitude is exactly the problem with Chinese foreign policy. All the countries that today have reasonably competent leadership are western allies. China can try to work with them, but it's very difficult to move them out of the American orbit.
There are however some countries that are less competent, partially because they haven't been part of American led globalization. You can't expect them to be perfect allies immediately. They need help. Just as America made post war western Europe, Korea and Japan wealthy by opening its markets to them, China should offer better market access and investment. Spreading belt and road over the entire world is just not very effective. It needs a more sustained effort, as China is trying to do in Pakistan now. But even with Pakistan, there is limited help with their political problems that are turning them into a failed state. Russia, Iran, North Korea, Afghanistan, Myanmar and many others need help and protection.
So yes, China should help others sort out their issues. That's how you turn a transactional relationship into true friendship. And only by building up allies can you expect them to be helpful when China might need help in a future conflict. Today it would be laughable to expect any of the sanctioned countries other than maybe Russia to provide significant help to China. But there could be so much more
Just look at the world bank and America. That system is so strong because it works, carrots via IMF loans with conditions on how it's used so it doesn't all go into yachts and a really big stick in the form of sanctions if the country goes full retard. Along with a healthy dose of cultural influence to make sure that the population follows the "western development model" It usually works. I think Putin and his cronies are the perfect example of how you can't just throw money at a problem and expect it to be fixed.
Something that could work is sponsoring inspiring leaders and government officials to come and study in China, study the chinese system and build good relationships with the country at the same time.