I dont know how flexible the system is, but scaled voting would seem like a fair way to handle the various tiers.$1 tier= $322 from 332 patrons
$5 tier= $4220 from 844 patrons
$10 tier= $1170 from 117 patrons (the tier from which voting starts)
$20 tier= $140 from 7 patrons
$25 tier= $2100 from 84 patrons
$50 tier= $250 from 6 patrons
Total= $8202
Out of 1390 patrons only 214 get a vote.
I'm biased because I'm in the $5 tier and I do love the game but this has always struck me as strange. The $5-10 tiers tend to be where an awful lot of the money comes from for adult patreon games look at summertime saga for example. Voting shapes the game. It doesn't seem to make much sense to have the majority of those that provide the money and patron numbers cut out of the voting loop completely.
1 vote at the $5, 2 votes at the $10, since double the cost, etc.
That way, the higher donating tiers get a louder individual voice (i.e. more votes), but the vastly more numerous smaller voices (i.e. single vote tier) could influence it more if they happened to collectively go in a certain direction.