Very interesting comparison between an actual gold rush and a bitcoin gold rush, since bitcoin has been called digital gold.
However, there are major problems with this simile. First, altcoins are not like digital gold and don't claim to be for the most part, only bitcoin does. And only bitcoin can be.
Second, a gold rush is inflationary and the value of gold tends to drop. In the case of bitcoin, the supply is fixed and the value has tended to increase.
Third, "greed and lawlessness" was not a particular characteristic of the gold rush. And those are not particular evils eithers. Greed and selfishness are the driving force behind all economic activity. You cannot even think without a perception of "I" and other things relative to yourself. Greed and selfishness are the only movers of society period. It is impossible to act completely selflessly.
As for lawlessness, the opposite is tyranny. The economy functions better the more freedom (less regulation) you put on the market. It is a common tactic to frame lawlessness as evil and violent, when it is typically less so than markets with heavy regulatory burdens that promote black markets and violent organized crime.
"Where the few exploited the dream of the many." Welcome to the grownup world Fabio. Most businesses and people fail when they attempt entrepreneurial activity. The few succeed, and the many fail. But that's not a bad thing. It is better than reducing failure by mandating inefficiency.
That is not the case with bitcoin. All you have to do to get ahead and succeed in bitcoin is buy and hold. Altcoins are a different story.