In the sentence "Auch in dieser Rücksicht zeigt sich die Stellung zu vergangenen Systemen gewissermaßen günstiger", is "Stellung" here referring to "Einstellung" (towards the systems) or rather to the "Position" (of the systems)?
Without more context, this is some kind of educated guess, but the "zu" in Stellung zu vergangenen Systemen suggests that Einstellung is meant.
Also, "Rücksicht" is probably wrong, I would expect it to be "Rückschau" - to look (and evaluate) something a while after it happened.
"Einstellung" is a point of view or way of thinking, so it usually applies to a person. "Position" can refer to the place of an object, but also to the place of a person in a hierarchy. Unfortunately, the fragment doesn't show whether it refers to a person or an object.
Also "Rücksicht" in this context, especially with "vergangene" (past), almost certainly means "looking back (into the past)".