Turns out pure profit incentive only goes so far in incentivising "quality products and services", and after a while it becomes literally mandatory to be an asshole in order to continue following the profit.

Even paid Libre projects (of which there are a couple) tend to be less dickish than their blackbox cousins, after all, if they were chasing maximum profit and infinite growth, they wouldn't be a libre project now would they?

Corporations have the need to continuously add features in order to keep selling their product. So the outcome is more often than not, buggy and resource hungry software. In contrast FOSS doesn't have the need to add features for the sake of it, so only the genuinely useful features are implemented, usually.

i think it's because they are made by someone that actually uses them in contrast to som of the software from large companies that need to make money and don't give two hoots about usability

Most of these are created and maintained by people who are just like you and me and care about freedom and privacy. I think open source projects really reflects the "humanity" aspect of human civilization, it sounds a bit odd, but when you think about it, there is very less incentive for normal people to contribute to the open source. It is the frustration from dark patterns that give people some motivation to support and contribute to open source. This is atleast how I see it and why I so strongly support the FOSS cause, other people may view it differently but to me it reflects on humanity.

Because they are Free!(as in freedom)

Freedom 3 gives users who use the program to improve it and give it back to the community