The relevant issue is not *if* culture is or not a good thing, but *which* culture is good.
One of the most frequent logical fallacies of today is to try to establish a moral equivalence between all cultures.
The massive Politically-Correct-rubbish and propaganda on the mainstream media - and therefore the opinion of the majority of the populace - stresses out that all cultures should be regarded with the same respect and considered equally valid, in the name of democracy, tolerance, multiculturalism & blahblah.
However, I can't but disagree with this standardized viewpoint.
Let's take some examples:
1. Should I consider "good" the culture of certain tribes that, still today, kill their newborn babies by starving them to death if they have any physical defect? Is this culture equal or superior to others that advocate the baby should be treated with love and compassion, raised within the family and taken care of ?
2. Should a certain culture, where the highest artistical manifestation is to beat with a stick onto a hollow tree, be considered equivalent to another which produces symphonies and impressionist pictures?
3. Should I consider a culture that compels you to believe in their faith, leave or die (or accept to be a second-class being and pay high taxes just to be left in peace) equivalent to others -- including the culture I've voluntarily identified myself with -- that allow you to freely choose your faith, or even to believe in nothing but yourself?
I could quote many other examples to illustrate my opinion that there are good and bad cultures indeed, when analyzed through a libertarian viewpoint (considering the non-aggression principle above all subjective criteria) and also to evaluate through the outcomes of these mindsets.
Not to say that I would coerce anyone to follow my culture or adopt my personal values, however I do believe there are superior sets of values, beliefs, habits and other elements which compose the so-called "culture", and that these factors also lead to a better life when transposed to business, personal relationships and other human interactions.