There are certainly both economic and strategic objectives underlying these new silk roads. These new silk roads are accompanied by the construction of naval bases, in particular in Djibouti and Walvis Bay in Namibia. There's also a technological aspect to them. That said, we can't say that the aim is to transform African regimes to mirror the Chinese model. I think that China can live with the regimes and systems as they stand. Take the example of Niger, which recently experienced a coup d'état. There was a period of observation. However, once things settled down, it was back to business as usual, even though China had been on good terms with the ousted regime.
It's important to differentiate between the powers. They don't have the same intentions, especially with regard to the African continent.