How is a system of money a logical way to allocate resources?

when greed triumphs human needs? Why do we not produce for people who are not valued because they have no purchasing power? Why do we market all these UNNECESSARY crap by manipulating demand for those in developed countries, while there are people who are starving elsewhere? Why cannot we instead think of a new system where we produce stuff to fulfil a human need? If money was not the driving force in the economy, we could create sustainable solutions that would otherwise not be profitable because the goal was previously about maximizing profit which is in direct opposition to providing long term solutions and products to people who need them the most. It is not that this monetary system efficiently allocates resources, as we'd have ended world poverty by now considering we have the ability to do so. Nobody needs all this new sh*t; things we're told to want because our lives in a consumerist culture are so meaningless.