Earlier quoted context omitted.
Yes. Except, "strategic value to the manager "
What is strategic value to the manager that is not hard work and delivering result? I'm asking sincerely, since I do hear a lot about the lack of correlation between hard work and promotion. I want to understand.
Essentially by supporting that manager's political goals (to gain power within the organization), you receive rewards based not on skill or merit but as a result of your support.
In this system, people in a relationship are either 'patrons' or 'clients', and it is expected that patrons will help clients within their power and in return clients will support their patrons advancement, either through advancing their ends directly or undermining competitors.
All of these things are wasteful distractions, but then, that's politics.