Money circulates, even if you save it the banks spend it!
The money the wealthy spend will create jobs, don't worry about that.
No and no.
Money is created by the Central Bank (in the case of Britain the Bank of England) and used either directly to buy back Government bonds or given to the banks. The banks don't give it to the ones at the bottom of the chain but they also reinvest it in bonds. If they didn't do that, the system would collapse. This money created this way doesn't create jobs at all. In fact there are less jobs available and those who work earn considerably less that 10 years ago.
I can appreciate here there are people ideologically against capitalism and that's fine, but please don't call high finance capitalism because it's a totally different phenomenon.