Change current implementation of basic MVVM to adhere to SOLID pattern

Question

I have been writing all my MVVM application with basic design pattern generally mentioned in MVVM examples available online. The pattern that I am following is described below:<

Answer 1

Why are you injecting all these services in your viewmodel base class if the viewmodel base class does not make use of these services himself ?

Just inject the services you need in the derived viewmodels that do need those services.