I am not saying having nice home, car, etc are bad things at all, but modesty and moderation does not come easy to Americans. IMO
But what if we temper our lives with those 3 verses in Philippians. What if we were known for our moderation, prayerful, and thankful to our God? Then the peace of God that does pass all understanding is there for each of us no matter if we are living check to check or encumbered with the trappings of wealth.
Be poor in Spirit (humble) Mt. 5:3 , faithful to our God and caring of others in the moments that make up your day. Then this whole moderation concept should take care of itself.
May God lead, use, and bless your lives in ways that are beyond your dreams.