For small miners, small payout is safer, because we can easily get out without waiting for the limit to fill up.

Smaller payout also mean, less accusations to you about scamming, etc. Because waiting to get out causes frustration.

EDIT:

Smaller payout also means more transactions to solve, more blocks coming, and a less volatile price movements.

Remember, you are like 60-70% of total network hashing power. You and livecoins are de facto controller of dbix.