Reliable demographics or voting blocks get preferential treatment over fair-weather voters. If you want to know why even the GOP won’t overtly kill social security or medicare (unless they include a way to keep current recipients on benefits), it’s because old people vote very reliably. Though with the modern day cultists this isn’t as true anymore since MAGAs will happily let the GOP take everything from them if they think it will hurt their perceived political enemies.
This is just useful expenditure of political capital. As a politician you want to stick your neck out for groups that are definitely showing up.