So they are going to use 20% of their computational budget to make an alignment AI that presumably can monitor and provide feedback for the other AIs they plan

So they are going to use 20% of their computational budget to make an alignment AI that presumably can monitor and provide feedback for the other AIs they plan to develop which will use 80% of their budget. I'm not great at math but 80 > 20 so wouldn't it make sense to build the superaligner with 80% of their budget and allow it to control the 20% AI? Again, I'm not an expert but the numbers don't add up.