I am something, yet I am nothing

I am something, because

 I am a son, brother, cousin, and a good husband to my special family.

I'm a driver who could meet you by accident and affect your life inadvertently.

I'm a friend who can make your life easier or harder.

If we are all connected, my actions would affect you. A ripple in the water.

if I am spotted doing something abnormal, people would notice and take action.

if I die, my family and friends would be very hurt and sad. 

yet I am nothing.

I have been here for less than a century, yet the oceans, mountains, and sun have been here since the beginning of time.

I am, but just a spec of dust compared to the size of my surroundings, ie, city, state, country, and world.

If I was on the crowded highway, you would never even see me.

I may be 200 pounds, but I am lighter than a feather when compared to the weight of the ocean, mountains, or a single building.

If I am in the middle of the ocean, desert, or forest, then I could never be heard or seen.

I am no better than you or them, I am just another Joe Blo on this vast earth, doing the best I can till I part ways.

If I were to die, the world would not even blink an eye. Much different than a world leader or celebrity.

Also if I were to die, it would be weeks before anyone would notice.