Forget all the corruption, raw language and excesses in lifestyles.
The bottom-line lesson is "Wolf of Wall Street" is to learn how to sell. Do that and you can always reinvent yourself, just as Jordan did in federal prison and then again, after release, as an international sales trainer. The film ends with his cluing in the unwashed about the fundmentals of selling. Jordan is a survivor.
Not that there is just one style of selling. Jordan's high-pressure tactics were very effective back then, before a lot of ugly things happened in the economy. In some target markets they might still work. Now and then I receive requests from prospects to knock out that kind of hard-boiled copy. I always say no. Not my style. I can't invest my soul in it.
More my style, at least after a lot of trial and error as the economy started recovering, is leveraging expertise. Increasingly those in professional services know they need a book as a price of entry. Usually they don't know what they don't know about doing a book. I bite the bullet and get in there and inform them about the musts. That's one style.
Another style of selling is listening a lot. That gives you the opportunity to uncover what the prospect really wants or needs. It may be permission to buy a designer purse or the Audi. If you've been trained to listen, you pick that up. You give permission. You have the sale.
The best way of learning how to sell is to observe successful salespeople. They might be in Congress, pitching a proposal or the clerk in PetSmart leading you through the door toward the high end of dog winter coats.
The next step is to go out there and try out the range of styles. You will know immediately which is the best fit for you. You will sell sell sell.