Here's why: reddit.com/r/tezos/commen…
now what is "baking" you may ask? a great place to start it turns out.
the takeaway: participation is key to benefitting from (and protecting against) inflation
because it means that if you own less than 10,000 tezzies and / or can't bake, you must hand over your economic power (read: voting rights) to someone else, or risk having your tezzies lose value do to inflation.
if we dig deeper into the Tezos genesis block, we can see that nearly 80% of accounts originally distributed to don’t have enough tokens to participate in baking on their own, and thus their only choice is to delegate their stake to a baker.