A few images that should pretty much make you understand why the banking system is not the solution and bitcoin make the financial part in anyone's life easier.
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The images are quite outdated though, not that Bitcoin prices have rose up to 10x, and so have the fees. However it is still true that banking fees may still be higher if you are dealing with large amounts.
The good/bad thing about Bitcoin fees are that they are around the same regardless of the amount, good for large amount, disastrous for microtransactions.
However I like Bitcoin as it is limited so I hold some and let it grow, at the same time use it as a digital currency as I find it more convenient.