If you complete a “clear cemetery” contract” and a chain event fires “destroy necromancer’s lair” an entire chain counts as one contract for the purposes of the ambition “complete more contracts”.
This makes continuation of the chain counter-productive if one rushes recnown, winch defeats the purpose of the chain itself.
IMHO it should give 1 point for each part of the chain.
Guess similar issue lies with similar chain quests.