The deal is that when your intention is to sell no matter what, of course you are not being sincere and caring first about your customers needs.
Most marketers out there don't sound sincere or authentic at all.
No matter what they say, most people are radically tunred off by their marketing tactics because they don't feel aunthentic and they feel like theyr try to manipulate the audinece into doing whatever they want them to do.
people feel that!
they are not stupid!
So, authenticity is the authenticity of intention!
That's what matters the most!