This is of course, a lot of pensioners, which includes a lot of Tory voters.
But we already know that Tories gonna Tory. Just look at that thread elsewhere.
Of course, it's entirely possible that's not a representative view of the UK. However, I've had my arse handed to me before when I have dared to apply the tiniest bit of sanity to appearances*. Not doing that again.
We also need to remember the media distortion around the idea of "pensioner". There are extremes of wealth and poverty there, just as elsewhere in society. A lot of voting pensioners may be relatively well-off.
Finally there's the wealth paradox. The more you have, the more you keep.