Whether RCM-single maintenance strategy applicable in all type of industry /organisations in same fashion.?

There is no one fix maintenance strategy which can be applied in all type of industry. To my understanding  maintenance strategy to be adopted successfully to achieve long term reliability depends on following:
1.type of industry(process,continuous,batch production,Hydrocarbon,Engineering
   manufacturing etc)
2.Age of industry.How old industry is?
3. Severity and consequences of failure of assets.(Impact :on assets,human
   being,surrounding/environment and reputation of organisation)

A continuous Process industry like Fertilisers,petrochemical,Oil-gas & Energy sector industry may adopt following Proactive good maintenance Strategy within RCM domain:
- PM :frequency based on past historical data/MTBF/OEM recommendation(capital
  machines)
-PdM or Condition based maintenance to identify failure detection threshold point
  to plan corrective measures to repair the item/equipment proactively before the hard
  failure happens.
-Capital overhaul based on running hours/nos of years/types of cyclic load/service being handled by equipment.