The thing is that in the future the mere quantity of fakes will make the careful vetting process you describe physically impossible. You will be bombarded with high quality fakes to such an extent that you will simply have to give up trying to keep up, so it will be a choice of either dropping the vetting process or dropping bringing any pictures altogether. For profit driven corporate jwbed media outlets, the choice unfortunately will be obvious.
I’m not talking about vetting pictures. I’m talking about journalists who investigate issues THEMSELVES and uncover the truth. They take their OWN pictures and post them on their website and accounts putting their credibility as collateral. We trust them, not because it’s a picture, but because of who took it.
This already happened with text, people learned “Don’t believe everything you read!” And invented the press to figure out the truth. It used to be a core part of our society. But people were tricked into thinking pictures and video were somehow mediums of empirical truth, just because it’s HARD to fake. But never impossible. Which is worse, actually. So we neglected the press and let it collapse into a shit show because we thought we could do it ourselves.