"rightful role" is a correct and usable phrase in written English.
It can be used to refer to the proper or intended role of someone or something. Example: The new CEO took on her rightful role as the leader of the company, making strategic decisions and steering the direction of the business. In this sentence, the phrase "rightful role" indicates that it is the CEO's rightful or appropriate position to be the leader of the company.
Demanding the three Ds, namely Diversification of ownership, Diversity of voices, and Discipline in the professions, is crucial if the media is to counter external pressures, enhance its independence, and play its rightful role in shoring up democracy and human rights.
Conectas has pursued a similar strategy of defending human rights in Brazil, while locating these within a conception of Brazil's rightful role on the planet.
Germany is assuming its rightful role as one of the world's leading laboratories for this mixing.
In effect, they say, she has usurped the city's rightful role as policy maker.
When will the Senate speak up for its rightful role in any decision about waging war?
After all the fuss is over, the Internet will resume its rightful role as simply a good tool.
As in other stories of exceptional, hard-working Indian women, volition and ambition are denied their rightful roles.
Hutcheson and Kames are given their rightful roles as antecedents of those giants of modern western thought, Hume and Adam Smith.
Many see themselves as demoted to mere intelligence-gatherers, stripped of their rightful roles as strategic analysts and forward-looking policy advisers.
That's the case with military family-reunion shows like "Coming Home" on Lifetime and "Surprise Homecoming" on TLC, which depict soldiers not as instruments of war but as family pillars resuming their rightful roles.
Young millennials may not have been able to afford cars, but as parents, they will quickly assume their rightful roles as chauffeurs.
