It's interesting reading a chapter while paying attention to how things are being said, rather than what is being said.
All my quotes in this post are from chapter 16.
Wickham comes across as intelligent and well-educated, his language useage appears as sophisticated as Darcy's or Elizabeth's. "infancy", "impartial", "deserts", "prospect", "solitude".
JA does emphasis particular words of his a lot [all emphasis in original]:
I must have employment and society.
The church ought to have been my profession
"Some time or other he will be -- but it shall not be by me. Till I can forget his father, I can never defy or expose him."