The flowery style is not unsuitable to public speeches or addresses which amount only to compliment. The lighter beauties are in their place when there is nothing more solid to say but the flowery style ought to be banished from a pleading a sermon or a didactic work.
Science fiction has a way of letting you talk about where we are in the world and letting you be a bit of a pop philosopher without being didactic.
There is poetry even in prose in all the great prose which is not merely utilitarian or didactic: there exist poets who write in prose or at least in more or less apparent prose millions of poets write verses which have no connection with poetry.
I had a huge advantage when I started 50 years ago - my job was secure. I didn't have to promote myself. These days there's far more pressure to make a mark so the temptation is to make adventure television or personality shows. I hope the more didactic approach won't be lost.
The essential function of art is moral. But a passionate implicit morality not didactic. A morality which changes the blood rather than the mind.