It's a good point with multiple voices instead of one IMO. In the end, it could even stretch to ambassadors in countries with the most robust community.
To accommodate more various topics the are communities and tribes and it seems to work. It's true you can get rewarded only within the first 7days but on the other hand, your tokens may get up in value, which seems inevitable while the platform grows. And there are 2nd layer tokens which is some additional source of income, but I see here the potential for much more. Thank you for your honest and insightful comment.