MSN Chat was the full corporate bundled with windows program that matches your description of ‘90s Microsoft. A non-monetized chat app targeting decentralized protocols definitely was not.
To imply that every single person there was evil to their core simply by association is utterly ridiculous.
I doubt the guy who created Minesweeper was dreaming of world domination while working there
But it was in the timeframe where the "browser wars" gained momentum, where Microsoft Network tried to "Microsoftify" the Internet etc.
Even if it was a research project by research focussed people it fit in the bigger strategy and gave a friendly face.