Why being big matters
Because it's who you are from the time you're born. The more true to yourself you are and the more you actively step into roles of influence and find megaphones for those messages, the more powerful you become.
Humans inherently trust authenticity. Maybe it's genetic or biological, but people seek it out and admire it.
Being big matters because it's your path in life, to be your biggest self.
Being big also matters because it's a signal for influence and power and that people can trust you. It's entirely necessary for partnerships and is what magical brands are made of.
People will certainly envy you for the perceived bravery in being true to your god-given nature, but their jealousy is foolish, because they too were born with grandness.
The only difference between you and them is that you decided to honor it despite the critics who would cautiously advise you otherwise.