Rule to remember: once socialists attain power, they will do anything to keep it. The EU is nothing but socialists coalescing their power.
The rescue package was more important than straightening Greece out or protecting the economic viability of each member country by cutting Greece loose. They had to keep Greece and they had to keep Greece on the hook. Otherwise, the whole contraption flies apart.
In theory, I think, a country may leave the European Union, but what will happen if one tries? Would they in fact be allowed to escape from the clutches of the bureaucrats in Brussels?