From marketing to revenue: the whole shift is about the territory of responsibility.

A CMO owns the marketing funnel: clicks, leads, spend, aka advertising cost, marketing budget.
The territory ends the moment the lead is handed over to someone else.

A CRO owns the same funnel plus everything after it. All the way to the money.

The first thing this kills is the oldest conflict in the company. Sales says the leads are bad. Marketing says sales can't close and burns the leads it gets. Both are half right, and neither one is accountable for the number that actually matters. Put both under one owner and there is simply no one left to blame.

The second thing is the weight class. Being responsible for spend means being responsible for a cost. Being responsible for revenue means being responsible for the business. It's not one more layer of KPIs on top of the old job — it's a different job.

And this is where the status of the role comes from. Surveys keep showing the same picture: the CMO is the C-level executive most often left out of the most important meetings, and the one whose contribution is underestimated most. Which is consistent, not unfair. You get invited into the room where the money is decided when you carry the number, not the budget.

Moving from CMO to CRO is not a change of title. It's taking responsibility for the main part of the business.