Indeed, therein lies the problem. The banks did not deserve to be bailed out, but if they hadn't a complete collapse of the financial system as has occurred in places like Albania in the past may have occurred, and if it had we would have been propelled straight back into being a third-world country.
I think the threat of a "complete collapse of the financial system" was vastly overstated and Gordon Brown bought it hook, line and sinker. Brown had a history of doing that; the gold sale he is (rightly) vilified for happened because Goldman Sachs had gambled on the price going down and, if he hadn't dumped the gold on the market, would have lost billions.
FWIW I think life would largely have gone on, just as it did in Argentina and just as it is doing in Greece and Cyprus. I don't think investment banking is anywhere near as indispensable as the bankers like to think it is.
As for "EU rules preventing state aid", that is, quite frankly, a load of bull. There are no EU rules that prevent governments being shareholders, or even majority shareholders, in any business. Electricite de France, who have just signed a deal (with the Chinese) to build new nuclear power stations in the UK, are effectively owned by the French government (and have used the French secret service to spy on Greenpeace in the past).
I'd agree that the government couldn't just give a huge sack of cash to one steel manufacturer and not another one. But then that would never be a sensible way of resolving the situation anyway. Ineos, who we all remember threatened to close Grangemouth oil refinery unless they were given a big sack of cash, were given a £230m loan guarantee by the UK government to
keep the plant open "invest in the plant", despite the fact their owner Jim Ratcliffe (personal wealth: £3.5bn) moved the company HQ out of the UK to save £100m a year in tax.