I cannot understand how Renault is going to "wash" their public image by running a works team.
In my oppinion the origin of their problem is the enormous gap in investment to Mercedes.
Now they plan to increase their investment just to share it with chasis development and fail again to challenge Mercedes and Ferrari as works teams.
I think their best chance were to invest the necessary resources to beat their competitors with RB and make a lot of noise about it clearly showing that RB without them cannot win a championship. But it's clear they will not do it this way.