"Royalty" never really ruled anything completely in history. There were always ministers, even a prime minister, bureaucracy under the King/Queen. The King/Queen only maintained enough political power to veto any decision in any branch of the government. That's pretty much it.
Nothing much really changed per se after Democracy. Bureaucracy still remains the largest and still a unelected branch of the government. You still can't interfere with anything to do with Armed Forces and Judiciary, and they too are unelected. Only thing the public got was a way to elect the (prime-)minister(s). But even the merits of this are up for a debate, Democracy doesn't work well if your masses are not empowered to make good decisions, or they have all the empowerment or they just can't make right decisions for themselves.
Ask yourself this, why would anybody want to be elected? To serve the people? People do anything because its personally profitable to them, that begs the question, do they even have your best interests in their decisions and work?
Regardless a huge range of decisions remain outside the control and scope of the common masses.
Also beyond all this, these are political definitions, just like boundaries they expand and contract every century or so, this is with any country. So you really have to ask at the end of the day, what are you fighting for?