OK new question...
Imagine two planets in contact, with one of them with dignity and the other without. Imagine the first planet is in exaltation, and the planet it contacts would be in detriment in the sign-placing for the first planet.
One can change the aspect, and whether there is implied dignity or debility gained by the contact.
Sun in Cancer square Jupiter in Aries (gain for the Sun?)
Sun in Cancer squaring Saturn in Libra (loss for the Sun?)
Sun in Aries trine Saturn in Saggitarius (loss for the Sun?)
Do planets gain or lose by contact like this and to what extent? It's not mutual reception, but there is a dignity/debility factor involved in the contact. What other features might change how this works? Imagine the first example where I speculate the Sun might gain from the contact with a planet in it's place of exaltation, does that further empower the Sun? Or the second example take away even more from the Sun?
Old time astrology (13th century and earlier) particularly Islamic astrology, followed the doctrine called "benefaction" (also called "recovery" and "pleasantness") in which, if planet A is dignified and planet B is debilitated (essentially dignified or essentially debilitated, although it can apply also, to some extent, to a rescue from accidental debility) and they conjoin (or are applying to conjunction) then the dignified planet A "benefits" ("recovers") planet B from planet B's debility. I largely follow this concept*...However, this principle (apparently) does NOT apply to aspects between the planets...
*this concept is discussed by various authors of those times; see for example Al-Biruni's "Book of Instruction in the Elements of the Art of Astrology" (1029 AD) and Ibn Ezra's "Beginning of Wisdom" (1158 AD)