There will be no room for capital profits, so there will be no speculative stock, bond markets and no finance sectors.

There is a science to human organization and behaviour, scientific socialism is only against exploitative behaviour, but will make use of the sciences.

Someone already mentioned logistics.

Managerial jobs will probably end up just like any other worker.

Worker run enterprises will need to operate within a budget.

Don't bring up moneyless society as an argument if you don't even have a theory of how to run a moneyless society.

We can at most imagine equitable income distribution by labour under socialism, which is from each according to their ability to each according to their labour. The abolishment of capital returns, land rents, and speculative gains on the market etc. Money will lose its function as capital.

Ability just means you are good at something, in that case being good at picking locks and stealing, being good at speculating and investing, is all being good at something.

Labour is a specific ability, that we can measure with labour value.