One thing is if he deserves to be in WRC , another thing is where his father made his fortune. Some rich people may have their hands dirty, but then again is not something that can be proven here, is not something of an interest from a WRC point of view, and more important is not something that should be discussed when it involves the reputation of a man just because of an article in the net.
Even if it is right I don't think is any of our concern where a WRC driver gets his money from.