Even if a fire service has ladder trucks, the existing ladder trucks may be berthed outside the area served by the local fire station and therefore the fire service cannot provide an appropriate response time and needs another ladder truck. Because ladder trucks are big, this may mean that the local fire station needs to be expanded to house the ladder truck.
Providing a ladder truck and possibly funds may, in some cases, remove the reasons for the height restrictions...with the premise that height restrictions are occasionally the result of careful consideration rather than or in addition to nimbyism.
If you just "bribe" the organization, there's no conflict of interest. "We want to build this" "we dont want you to" "heres some money" "ok".
Its a bit like negotiating with the CEO vs. bribing a lone DBA about getting access to proprietary data.