The term institution commonly applies to both informal institutions such as customs, or behavior patterns important to a society, and to particular formal institutions created by entities such as the government and public services.
The definition of conservative is favoring older, known traditions and resisting any changes. An example of conservative is preferring laws to stay the same. Conservative is defined as a type of statement that is safe or moderate. An example of conservative is an estimate of how much time a job will take.
In other words, a right-wing conservative can be from the same political culture as a left-wing liberal. In other words, political culture is something we share, while a political ideology is something we use to define ourselves and make political decisions.