I'm running a class now on romance plotting, and we're exploring what strengths and goals and conflicts our main character has. And I confidently jotted down that my current hero is an all-powerful nobleman who can get and do anything he wants, and so the heroine kidnapping him is a reversal.
So I was pleased with myself until I realized I hadn't actually SHOWN that in the opening (pre-kidnap) scene. In fact, because I start in the hero's POV, I'm presenting more his insecurity and dread (he has to propose marriage to someone he doesn't love in the morning). He certainly doesn't FEEL all powerful, and that's all that's coming across. (This is actually a kind of good reason for a secondary POV, like that of the porter who guides him up to his theatre box, who is probably respectfully fearful of this powerful guy, not being privy to all his insecure thoughts. Not that I would start a book in secondary POV. I do have standards, however inconvenient.)
So I'm thinking now of how I can modify the opening slightly to show that, however uncertain he feels, as far as the society goes, he's powerful. I already have him interacting with his younger brother, who resents that power, so I might pump that up some, have bro mutter something about him being a bully. I could also have those he encounters in the theatre bow to him like he's really important. He doesn't have to feel that way, as long as others show it in their behavior (power is so much really a function of what others think).
The point of this is not to impress the reader with his ultimate coolness, but rather to set up "power" as something he must give up, something to sacrifice, something that becomes a conflict for him as he falls in love.
... So are there concrete ways in the opening you "set up" some of the character aspects you want to develop, that you've devised in exercises or thinking about this person?