All valid points. I just feel by not knowing of someone's existence it is undervaluing them in some ways.
You can think that, but the linguistics of the term dictate that you'd be wrong.
If you were rating someone on a scale of 1-10 and you'd never heard of them you'd give no rating on the basis of no insight...... You wouldn't just give them a low rating regardless.
Kinda like what we have seen this season with Romero and Kulu IMO.
There is a strong correlation between not knowing of someone or something, and the under appreciation of them.
Just like at work, if my colleagues were receiving praise or rewarded for their work, and I had got the same results without being rewarded.. then of course I would feel under valued or even 'under rated' at work. This is regardless of whether management knew of me or not.
That's a crap analogy...... It's your manager's responsibility to know who accounts for the output of their team. By your token, they should know about the workload of someone in another company.
..........An English football fan is not obliged to have an opinon on a fledgeling player in another league that gets no coverage in the mainstream media.