it is impossible to build one's own happiness on the unhappiness of others. This perspective is at the heart of Buddhist teachings.
Culture is an elevated expression of the inner voice which the different peoples of the Earth have heard in the depths of their being, a voice which conveys the vibrant compassion and wisdom of the cosmic life. For different cultures to engage in interaction is to catalyze each other's souls and foster mutual understanding.
I cannot say this too strongly: Do not compare yourselves to others. Be true to who you are, and continue to learn with all your might.