Uber in Ghana has fares that are not much higher than the others. In fact, many times Uber is cheaper. Not sure about Nigeria or Uganda though.

And they even have a motorcycle ride option that is even cheaper.

And, although Uber Ghana was noticeably more professional when they started, they have relaxed their standards so much in recent years. They are still a tad better than the others, but many drives flit between them and other ride-share companies. A driver does not suddenly become better because they happen to be driving for Uber, although I concede they might u their game based on what is expected of them.