Is the "ethical" marketer ever exist?

Many times I've seen terms like unethical marketers, fake gurus, millionaire wannabes, scammers etc. from fellow marketers who clearly do not want to have anything to do with these people.

My question is, what is your definition of an ethical marketer?
and do the ethical marketer we keep on mentioning ever existed in the IM arena?

The reason, I asked this is because as far as I am trying my best to be an ethical marketer who really offer genuine help to my subscribers and customers, there's always some elements in this business that made me doubt my own ethics!

For example, in product creation (especially ebooks) I was trained to choose a niche that has desperate buyers. That is buyers who have pressing problems such as chronic anxiety,obesity, debts, health, sickness etc or people who are desperately wanting to find a soul mate or trying to get their ex back.

I was also trained that in order to make tons of money, my job now is to find the solutions/cure/help to the pains/problems/trouble that these poor people are currently suffering.

I was taught to go to Yahoo answers, youtube, related forums, local libraries, article directories etc to find contents that are later on supposed to be "solutions/cure/help" for these desperate people who are willing to throw money just to be well again.

Now, I have no problems if the "solutions/cure/help" that I will provide in my future products/ebooks are my real-life expertise or experience or at least a verified source that I know is certified to give advise. Because I know they will work or at least ease the problems for my customers.

The problem is, I can guess that most of the solutions/cure/help that are being sold on many places are not created by real expert.

Looking at the most common method (such as the above) to find contents for product creation, more often than not these products will not really help people who have bought them.

Why?

Because, first of all, most product creators especially on niches I've mentioned above are not real experts on that field. I think you guys understand what I actually meant?

I don't mean all product creators but I dare to say a large percentage of product creators are not qualified to give advise on most of the issues faced by people.

How can a person whom no nuts about the psychology of reuniting two humans together can give real advise to people who are experiencing real life marital problems?

Can contents taken a bit from here and a bit from there and then a bit more from an article directories solve the actual unique problems/issues faced by real human beings who are desperately seeking for help?

Can any tom,dick and harry give advise on how to cure acne within 14 days?

or is an Amazon affiliate whom have not bought the products he promote give honest reviews that may influence their web visitors buying decision?

Lastly, if what I have said is true, what can we, the "ethical marketers" do to really help our customers who are paying us for the info they are hoping to benefit from?

Or if we can't really help them, then are we being ethical enough to sell products to them just because we know that they are basically a goldmine for us to take advantage on?

Lastly, does the real ethical marketer really exist?

Please share your views.

Thanks,
Zul