You should offer products at the cost to provide them plus a reasonable profit margin. If you're charging so much more than it actually costs you to provide that you can make it equally affordable in Switzerland and Somalia, you're already an asshole and no amount of social activism pricing will erase that.
You're missing the fact that most courses (i.e. the ones that aren't wildly successful) have a large upfront cost. The marginal cost might be a tiny fraction of the price, but that doesn't necessarily translate to a profitable enterprise overall.
You can see the same effect with railways and aeroplanes. There's definitely plenty of operational costs, but the capital costs are relatively high so you want to keep your capital goods (the railways/trains/planes) active all the time even if you only make a tiny profit on each service. However, these businesses often only pan out if they can attract high-margin customers (e.g. business class flyers).
What is "cost to provide" for a SaaS product? Just the marginal computing costs? You have to recover your development costs somehow, apparently that makes you an asshole.
