Suffix -eer

[HaraKiriBlade]

Does it add negativity to words? I came across three words ending with -eer today; profiteer(ing), commandeer(ing) and racketeer(ing), and all three carry quite negative meanings.

If the suffix doesn't really add negativity to words, can you show me other words ending with -eer(ing) that don't have negative meanings? Thank you.

[Casiopea]

a person engaged in or concerned with,
pamphleteer,
auctioneer
charioteer
engineer