I think the problem people seem to have is that it is standard, stereotypical advice. The entire premise is built upon the fact that you have a job that pays enough money to allow you to do the things he's suggesting -- people with untapped upward mobility.
If you're in a situation where you're working multiple jobs (or can't find any jobs) just to be able to "eat poorly", you won't have the time or money to network, invest in your future, travel, or save up.
1. Live cheaply. Don't waste money where you don't need to.
2. Expand your network by being nice and friendly to people.
3. Learn and invest in your future.
4. Take time off, travel the world and expand your horizons.
5. Save money. This is ideally used to start your dream. In reality, this can be used in times of trouble.
What's so bad about that? I think this is good advice for anyone trying to ``make it''.