I fail to recognise how confounding individual virtue and purity with wider social liberation is a mistake? I met RMS at Riga Politech when his group campaigned

I fail to recognise how confounding individual virtue and purity with wider social liberation is a mistake? I met RMS at Riga Politech when his group campaigned against EU Software Patents, and his logic in the presentation was flawless. I signed petition because of that. When we talked very shortly after the presentation, I concluded for myself that Stallman is indeed very careful with words and the meaning.