There are strict rules for one to have 正财格. 正财 must be his favorable Ten Gods 十神, reveal, control at month branch, no clashes and preferably have support just to name a few. This is not like seeing 正财 it automatically become 正财格.
When you said unhealthy 正财格 means with clashes, without root etc ... then it is not 正财格. Strictly speaking, there is no unhealthy 正财格 because unhealthy 正财格 is not 正财格. This applied to all other profiles the eight profiles 八格 eg. 偏财格, 正印格, 从儿格 and the two 變格.
A healthy 正财格 still need to meet supportive TaYun in order to be good.
Cheers.