Yeah agree with plenty of that...
ATC isn't really like the corporate wank where you get your foot in the door at a company and then try 'climb the ladder' by whatever means possible. The majority in the job enjoy what they do, and do so because they are one of the select few that are suited to the role.
Of course there is plenty of scope to move into different roles (projects, safety, training, service improvement etc), but what you'll find is that this is often a side/backwards step and comes about because someone isn't cut out for the rigours of ATC anymore.
There are a select few who get hand picked from the ranks and make the jump across to the upper eschalons of management... For their reward they get paid handsomely, get to spend their life in Canberra, and forget what the word No means.