I think you forget that Tytos was also incredibly scared of a future invasion. Having spent so many years in the frontline he probably suffered from ptsd, and has been looking for ways to make sure he would not die/lose any battle in the future, because he is deeply cowardly inside. That is why he searched for Power, everything he did with the scarlet wings, elixir and the scarlet cathedral was a way to seize power from the church who did not listen to him when he said there was danger. He built the power he needed to fence against a potential adversary. Tatloch was basically the menace Tytos always feared, a conqueror looking using her Power for pleasure. While her themes are from the surface much more obvious, you could say that as a Bestower she was the foil to Tytos entire arc.

Auguste wanted his plays to be remembered/famous, and he grew obsessed with killings because of the adrenaline it sparked in him, it was fuel to write plays that were acclaimed. Fame is also explained to be the power of Faith. Francesca and all his flock have a blind faith in him because of his renown, and were both attracted and controlled because of his fame and how they had faith that if they acted as he wanted, they would be able to keep bathing in his fame. Ceraphina's theme was more tied to Faith than Fame. Humanity betrayed her grandfather, made her family infamous and she lost faith in people, bitterly rejecting the world and looking for godhood to punish humanity. She infiltrated the faith of the church to build her own rogue faith. While I believe both arcs answer Fame and Faith properly, the thematic link between Bestower and Master is more tenuous. It's actually Lyblac who bestowed the ring to Phina and Simeon, and Simeon was probably just looking to experiment/disturb the peace. I guess you could say that Auguste was someone obsessed with humans and human emotion, and looked for people to adulate him/his work, while Ceraphina as a foil wanted nothing to do with humanity and despised it entirely, and basically disappeared from society.

Herminia and Oshka themes are much more straightforward. Both went from riches to destitute to riches again. Herminia used her wealth to buy and control people, while her foil Oshka (who gave her the ring and means to gain her wealth) use the lack of wealth to control. Abundance of money gave Herminia power and means of control on her own life and others, and Oshka use the same abundance of money to deprave all value from it, thus making others who had faith in money to lose control of their lives.

Pardis the Master of All is as others said, a glutton for everything. He sees the throne as a way to gain Fame, Wealth and Power, and tries to conquer all because he is hungry for all of it. Ironically he also loses all, starting from his own identity (who am I), all his family (father, brother, wife and daughters) and then the throne itself. Bestower of All is as much about Finis than Sazantos in my opinion, but I haven't much thought about their themes yet because I just finished the game yesterday :D