having a coin of 1 hour just makes EVERYONE on a 40 coin a week income
farmers wont the farm if all they ever gonna get is 40coin a week

if what you are asking for is a Universal basic income where everyone gets ~$300($7.50x40) but then allowed to earn whatever they like then after that...then what. how is that going to change things for the uber rich people..its not

having a UBI initially helps the super poor. where everyone is then entitled to some minimum living value no matter the circumstances

but this then will just create the slum-landlords to set rents at $150 a week for crackden-esq apartments. thus doing nothing in the end but inflating prices of things, where decent clean housing ends up being over $300 a week, again pricing the poor out of adequate living standards

in the UK local government have budgets for housing the poor which is like $150 for a single person for a private landlord to take them in.. but if you see these places. its smaller than a jail cell.
yes state run social housing is only $90, but the quality/space is better. but the amount of apartments/housing they have available is not enough.

but my point is by law uk local government do have provisions to give the poorest shelter and an allowance for any reason. and still UK has alot of poverty.
its not organised into a universal payment system. its different pots of cash in different departments reserved for different extreme needs. but even if organised into a central pot of universal income. where its then distributed by blockchain instead of debit cards... wont change things