Not really?
Look at the ten wealthiest Americans right now: Gates, Buffet, Ellison, The Kochs, The Waltons, and Bloomberg.
Gates: Born into an upper-middle class to upper-class family, attended exclusive private schools his whole life, parents encouraged him to be competetive, started software/hardware design prior enough to the tech boom to secure a spot as one of the top companies, along with his wealthy and equally-educated partners.
Buffet: Congressman as a father, was immersed in finance and stockbroking at an early age and was encouraged by parents to pursue his financial dreams; started finance as a career right before an economic upturn.
Ellison: Honestly the only one who achieved anything from a less-than-wealthy upbringing, able to partner with a shrewd businessman and programmer.
Kochs: Already very wealthy family, wealthy upbringing, private schools, private colleges, steered toward wealth by their parents
Waltons: Same as above
Michael Bloomberg: Worked at a bulge-bracket, was given partnership and then $10,000,000 as a severance-package, started company and used contacts from previous job to start its growth, profited enormously.
The advice in each of these videos is absolutely useless unless you have a backing, good body of contacts and investors, or a massive business opportunity already present. A lot of them are exceptions too, especially Tyler Perry.