Well, politics, race, socio-economics, gender and ethnicity can infulence ones deffination of a theroy and idelogy.
Every person is very diiferent, with totally different backrounds.
This is what makes them unique. These differences I named are so much factors in what a human could think. I know mostly that my family and freinds have basicly the same deffination of therorys and idelogys. This goes to show how imporant it is in life to get an education and succed.