>>686587do you think that the usual way of profit (selling commodities to consumers, providing a service, satisfying a need) is true for all companies today? today, a lot of companies survive on government subsidies or investment from other companies. also, a lot of companies are effectively landlords. what does Amazon make the most money from? amazon web services, they rent space on their servers, and they are the richest company on the planet. how does SpaceX make money? they don't, they are paid by the US government and other investors. Google and Facebook are built on advertising, how does advertising fit into it?
first chapters of Capital explains the workings of capitalism, simply. it is full of abstractions and generalisations and you can't use those simple formulas to model real world examples. furthermore, even Marx says that you aren't supposed to calculate labour time for each commodity, but his method allows you to calculate average labour time for all commodities produced. it helps you figure out the total societal surplus that can then be reinvested in the next year, that is how much can the means of production be expanded without resulting in famine or lack.