Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

Why credit cards are sold through banks and not from Visa or MasterCard directly 
Visa and Mastercard are not consumer-oriented companies. They do not consider individual consumers as their direct clients, and do not sell directly to them. Instead, their clients are financial institutions who participate in their networks (which is what they're selling). The institutions target the individual consumers (merchants and credit card holders). American Express, for example, has a different business model. AX doesn't only sell network services to financial institutions, but also services to individual consumers. You can get a AX credit card/merchant account directly with AX, or through their client bank.