Hi,
Tomasz Krzywicki. Around graduation time, (May/June?) a few articles regarding the unemployment status of recent US law graduates came out and were discussed extensively on this forum. So please excuse our cynicism and pardon our bitterness. You're absolutely correct in that the US has a bloated legal market and the investment banking world is altered quite a bit due to regulations. It is also common for non-Americans to question our tuition/debt spending, but sensible spending is quite another topic.
Aside from blind faith and bloated ego, there are indeed reasons to do finance even in this economic environment. Regulations may dampen the investment banks now, but lending and borrowing continue to exist through various channels among market participants. The shadow banking system aggressively fill in the voids left behind by fallen banks and risk taking persists among opportunistic investors. Most shadow-banking-system participants, however, do not have established practice to hire and train fresh grads. So even though students flock into banking internships and training programs, only a few handful intend to stay in the long run and most pursue more lucrative paths.
Now you see that "working for the banks" is just a mean and not an end, let's look at the banking profession itself. For the most of your networth, it will include a large portion of your savings that either sits idly in the bank or rides the market aimlessly in a mutual fund. Universal welfare assembles a defined-benefit scheme largely inaccessible to Americans (or is insignificant). So how can you turn your idle asset into revenue generating units? For most other professions, your expert knowledge will likely lie in your current profession or closely adjacent industries, so even your "outside investments" will only track closely to your day job. For bankers, their investment options are much wider. As a lawyer, it is not the specific law but the legal mindset you master; as a banker, it is not the upfront salary but the investment opportunities you desire over the long run.
Finally, you should remember that regulations and public sentiments are highly cyclical. The Glass-Steagal Act, enacted as an emergency response to the failure of nearly 5000 banks during the Great Depression, was eventually repealed in 1999 when investors once again found banking profit attractive and people forgot the pain. The tech industry, despite wiping away more than 80% capitalization of the Nasdaq Composite between 2000 and 2002, is now seeing a revival as investors rush in for return. Numerous major players announced aggressive acquisition of rental real estate. Recently, new laws have been passed to allow non-accreditted investors to bypass IPO due diligence and invest in startups, which directly conflict with many past security laws and consumer protection safeguards. All it takes is a few Facebook and Linkedin, then the past can be easily ignored or forgotten.
So to summarize why students want to go into finance
1) The banks are being forced to downsize, but much of finance exists elsewhere. Let it be treasury, risk management, credit, or operational optimization, there are ample opportunities if you know where to look and are flexible.
2) In comparison to other professions, banking allows you to lower the barrier of entry to opportunities in other industries. The domain knowledge allows you to convert idle asset into revenue generating units and diversifies your portfolio across various stage of the companies' growth spectrums.
3) As a new entrant, it is unwise to focus on the short term gain. The history of banking is as old as civilization itself, so the recent downturn should hardly be a determent if you believe that banking will continue to serve a vital purpose in our capitalistic society. People who truly excel in any industry are those who are willing to endure both the good and the bad, so even now can be an career opportunity in disguise.