Ratio 1 is about how much of the revenue base an insurer can allocate to certain costs or risk while still hitting its profitability targets. When profitability is high, there’s a bigger cushion between actual profits and the minimum required, so the company can sustain a higher value of this ratio without sacrificing earnings. In other words, a profitable insurer can absorb more expense or risk relative to revenue and still stay profitable. If profitability were irrelevant, or if higher profitability required a smaller ratio, that would misalign with the idea of a buffer provided by strong margins. The notion of an inverse relationship would also imply you’d deliberately reduce the ratio as profits rise, which wouldn’t make sense given that better profits allow supporting more spending or risk. Hence, the statement that more profitable insurers can sustain a higher Ratio 1 best fits the relationship between profitability and the ratio.