Promises of wealth and security are far more contingent than is being advertised.
The Millennial Generation, if we're to believe various polls, aspires to either make boatloads of money on Wall Street, or secure a can't-be-fired job in the government. Given the dominance of finance and an economic backdrop of rising insecurity, these are rational choices.
In the 40 years since the early 1970s, finance and insurance have doubled their share of the GDP. Note that since GDP has expanded many times over since 1935, the nominal size of financial services has soared.
Financialization really only took off, however, in the early 1980s. Broadly speaking, financialization is the substitution of debt for income and the commoditification of debt into financial instruments that could be sold globally, leveraged and hedged with derivatives.
This reality is so obvious that even the Mainstream Media has finally felt obligated to accept it: Finance Is to Blame for Rise in Inequality (via Jason Y.)