This is a good question, i think the condition with which they joined the community will determine what they do, since they are new to the system and got themselves in to a high position, their thinking will be different from that of a minnow because they have a bragging right in the sense that they joined with a big investment, so they dont wander like a typical minnow, they go for the big prizes, that is they invest on whales like them and some profitable projects on steem.
Looking at it critically, someone who comes in with a big investment like that must have drew out a plan to have a great return on his/her investment before joining in.
So to be clear the new whales will never behave like a minnow, and the existing whales have no choice than to accept them and watch them grow.
But then this begs a question, how does a new whale grows?