They need to be under the eyes of the public all the time because like what happens to Amazon, Visa needs customers like us to survive. People need to feel secure when they use their VISA/MC/AMEX what-else credit card payment gateway. While they rip-off merchants and businesses with their astronomical fees, they need us to keep using their cards and their network.
Hence, all this advertising.
However, the weird thing here is that they act as if they are helpers of the world trying to connect people together and help the people who otherwise couldn't, bitcoin really does that, crypto does that but Visa charges a lot of money for that so not like they are a charity, they are a business that makes billions.
It's called branding, these guys need to keep their faces clean while doing their dirty business. You're right but the majority of people don't even think in these terms. That's the power that comes from these big brands.
They talk about inclusion, banking the unbanked yet they rip-off merchants and businesses with their fees which are out of the world.
If real crypto payments would take place we could see these giants die but I think that's never gonna happen.