Because like slurping up and emptying pockets of water, markets themselves are finite within an economy where the main force of capital movement is profit seeking. The amount of slurping a company can do will depend on how much water is left in the pocket and how many other slurpers there are, so to speak, and the rate of slurping intensifies as the amount left dwindles, naturally incentivizing companies to gobble each other up in the name of being able to slurp more for less expenditure. And then that gets exhausted and new markets need to be sought so they get the state to crack open markets elsewhere to get more slurpin going, and the cycle repeats until that pocket doesn’t have water anymore. And if they don’t slurp then other companies will slurp, because the basis of the whole thing is trying to accumulate as much water as you can as an individual, instead of trying to figure out how much water does even require to meet their needs and grow in a more symbiotic way with the water