If people post interesting or thought out comments, I don't see that it matters who they are, dealer or not.
When new stuff comes out or stock comes in, I find it informative when a dealer lets us know.
Of course dealers act in their own self-interest - at its most raw and short term, yes making a profit. But long term profits will accrue to dealers who keep their customers happy.
For myself, I buy, from time to time guitars, cameras and bicycles. I long ago learned that basing my buying on the cheapest deal is not always best. In all the cases mentioned, I tend to go back to the same dealers. They have good prices, I can see and I can try the goods. In all those cases, they have been brought to my attention by word of mouth or good reports from experienced people in forums like these.
I hope all my favoured dealers make a good profit. That way, when I fancy a new camera or e-bike, they'll be there to sell it to me.
So yes, electric bike dealers are businessmen. The 'just' in the thread header seems to imply there's something wrong with that.
The term " business " esp with men has taken on more of an insidious tone in latter years thanks to oil companies , gulf war , bank cartels , governments - and Im sure you know the rest.
And if you dont , you should check out Wiki leaks documents entitled " Bike Dealers " , but only if you prepared to be suprised.
T