When it comes to discussing vested interests, it's important to have a wide range of synonyms to convey the same meaning. Some options include "self-interest," "personal gain," "hidden agenda," "ulterior motives," or "conflict of interest." Another alternative could be "prejudice," showcasing how one's bias or preconceived notions might be influencing their actions or decisions. Ultimately, the underlying idea behind these synonyms is that individuals or groups are seeking to benefit themselves rather than acting in the best interest of others or the greater good. Utilizing a varied set of terms can add nuance and complexity to discussions around vested interests.