There are two largely non-overlapping skillsets when it comes to politics and governance. The soft skills being effective means you can get elected, that does not mean they are good at governing (and is often a detriment to having good solutions and governance).

I don't currently have any data that says otherwise and the counterfactual remains unexplored (but it will be with this parliament!), but things that people do and say to get elected often are things that if implemented...would not solve the problems the populace that elected is having.

I don't think we need schmoozers, we need people who understand the problems of their populace and have the structural power to implement their solutions. We shall see if they need more than this, but this would be the first exploration of the counterfactual.

People who have their "own" priorities don't end up upsetting the apple cart when we make success in implementing those solutions the same as their success (which if we are effective problem solvers, should be possible. See Deng Xiaoping)