GD

(etc.)

I'm a bit curious as to why it seems to matter to you so much that Janelle is not promoted/advertised as heavily as the most popular mainstream acts on the charts (I've noticed this is a recurring sentiment expressed by you in quite a few other threads as well), because in the end, isn't your personal enjoyment of her music what matters the most? As many here have mentioned, the fact remains that her music just isn't as marketable as the music that's topping the charts. You're using Adele as an example of "not pop-friendly" music that became very popular, but as mentioned by Urban, that's mostly because it appeals heavily to another (also large) demographic than your typical pop hits.
When you go on to say that Janelle Monae would surely top the charts if her music was marketed as much as the music that do, in fact, top the charts, using the assertion that her music is more interesting as proof, you have to remember that the majority of consumers doesn't want "interesting", they want something that's catchy and easy to digest.
Clearly you don't enjoy most of the artists that's being marketed the most heavily so why would you even want people to associate Monae with these? (Since you seem to care so much about others perception, that is)
Is she perhaps suffering severe economical hardships because of her current level of popularity?
I think it's entirely possible that the mainstream music industry was not any more daring or un-conventional in who they chose to promote in the 80s and 90s (since you used those decades as examples) than now, just that those artists resonated more with your musical preferences.

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