Ehhh this is way more complicated than you make it sound. For example, I've been in situations where I've successfully argued for some component of what we do

Ehhh this is way more complicated than you make it sound. For example, I've been in situations where I've successfully argued for some component of what we do at work to be opensourced. But I wasn't given any extra resources to opensource it. I was doing consulting work at the time and the company didn't have a culture of contributing to opensource. In that case, I spent a couple weekends cleaning up the code I'd opensourced & triaging github issues. I'm proud of my work, and I want to share it. In another company, we were running into some limitations of the database we were using. I spent a weekend writing up a super simple database prototype from scratch, mostly as a research project for myself. I don't think we ever used any of the code I wrote. I probably ended up throwing it on github and then forgot about it. That database prototype was clearly "work related". But it was also very clearly not part of my job. - Although, working on that database made me better at my job. It helped me understand the limitations of the database we were using, and gave me some ideas on how to work around them. How can you argue that it was unethical to do any of that work? Frankly, everyone benefited. I learned a lot. I got better at my job - (and more employable). And my company benefited directly (and immediately) from my work.