Even the best driver cannot succeed without a great car, a great team behind him and great designers and manufacturers behind them. I would say the contribution of the driver counts for about 20% of the success in F1 and if Lewis were not there probably Bottas would be the champion. Same car, same team, same designers and manufacturers. The only difference would be that his lead would be slimmer, so it's down to the slim difference between drivers, especially since Bottas would then get the total support Lewis gets.
Put it another way, place Lewis in another car, say a Ferrari, would he still win? I somehow doubt it. So all that is needed is the best car, etc and a good driver of which there are many, to me the car is the key not some pimped up self publicist.
Mike.X