Do you have a source for this suspicion?

Currently China is almost completely responsible for raising people out of poverty on a global scale. This suggests that, if the CPC is funneling money into the accounts of government officials, it's mostly being used to build wealth for the people.

Besides, if the CPC has the power to limit the salaries of the wealthy, why bother jumping through hoops to raise your personal wealth when you could just raise your salary, or use a priori knowledge of the stock markets and accept "lobbying " money to raise your level of wealth like American politicians?