On long term, the people who learn computing this way may be a market for new computers, and that makes it good for computer manufacturers.
Besides that, computers in a landfill is a terrible idea, ecology-wise.
They would probably prefer government programs to let those places buy new "modern" computers right now.
I suspect as pad devices and mobile phones take over the real mobile use cases, laptops will get a bit more expensive as the market shrinks.
There is an opportunity to build them a bit better and to make them a bit more recyclable/upgradeable. Each product manufacturer has to make small decisions like this across all areas if we are to achieve sustainable consumption.
The tricky bit is encouraging manufacturers to make those decisions.