There is all the trades but what about trainers for the trades, project Managers, draftspersons, logistics, site survey, submittals, on and on and on..... 

There wasn't any thing signed or implied that I owe them anything.

@Ryan Swigart I would never state that someone was MY lender as that implies a commission, which we don’t earn.

I totally can see how someone rather wholesale rather than own property.Lastly there is a big difference between giving an opinion... and assuming wholesaling is crap ( as if it being a fact) and then be baffled why anyone would choose wholesaling "when they already are successful investing", therefore implying, wholesaling = not successful investor".Hence my example of getting married.

They are negotiating against the seller, but doing it in a way that implies they are working together.No wholesaler would stay in business if they paid sellers MLS prices.

It cuts down on the frustration of being an investor...Trainers wouldn't teach this because its too easy...

When one acts as a principal the other party knows they are (legally) adversaries with the opposing party.Wholesalers, "helping" home owners, are implying that they are acting as "advisers" to the home owner needing to sell.  

I am assuming you are a wholesaler (correct me if I am wrong), if so I would just tell the seller you are interested in buying and not mention the how you will buy.Its very important as a wholesaler that you always represent yourself buying the property and no one else because it could be implied that you are representing someone else and those are dangerous waters because you are now borderline practicing as a real estate agent/realtor and you need to be licensed to do that. 

Implying is that your offer is identical to the other offers on the table just with a lower due diligence is extremely misleading to anyone subsequently reading this post. 

I’m not implying brokers aren’t valuable but with your background and credentials you may just need to find the right direct lenders.