It appears that mining costs and the creation of crypto currencies consumes a lot of resources

We have very little resources remaining in the world for each other and future generations. Does it make sense to waste resources like this? Could we do this in a cheaper and more economically friendly manner? And does the value of bitcoin directly correlate to the amount of resources and man hours that are destroyed in order to create it?
what about human beings in the total of the whole population on earth who waste tons of resources and energy with useless and stupid things is that also counted? how about big factories not just consumes a lot of resources but also produces pollution to the mother nature? not just bitcoin mining but every business and firm costs expensive resources and money just to retain and advertise it, what do you expect to establish a business? money free that comes from nowhere? use green energy and other alternative methods to save electricity, there are a lot of people who are smart enough to mine at cheaper costs.