So if those countries don't care about their rivers spewing plastic into the oceans, could a billionaire simply pay to build one of these things and then pay bo

So if those countries don't care about their rivers spewing plastic into the oceans, could a billionaire simply pay to build one of these things and then pay boats to clean up the waste it collects? I wonder what it would cost to just put one of these in somewhere and run it. (Including all the bribes/lobbying to allow it to be built in the first place)