This is interesting, because we mostly have the opposite attitude in the United States. We recognize, and I believe accurately, that wealthy business people taking public office will usually be primarily concerned with increasing their own wealth.
Perhaps in a country like Ghana without a sizable number of enormously wealthy business people, it's easy to lose track of the common phenomenon that what business people mostly have in common is an intense (sometimes pathological) desire to gain and build wealth. It's easy to lose track of the idea that there is no such thing as "rich enough."
It's evident here that wealthy business people in Congress are mostly concerned with their own business interests and in the interests of people who can benefit their business interests.
For us, the idea of wealthy business people in government is an idea of probable corruption.
Interesting how perspectives differ!