Maybe a bit cheezy, but "preventing tragedies IS performing miracles" in my opinion. Then again, negative news are always more reported and recognized than positive news, so if if someone performs an extraordinarily good feat, they will be only awarded, if at all, for a very short time.
Preventing tragedies is important, but performing healings is also important. Public health personnel work to often prevent disease, injury or illness. Doctors, nurses and allied health professionals often perform procedures to rectify, heal or alleviate illness, restore health and promote wellbeing. I think both are equally important and work together. There are alternative practitioners also who work on non-medical ways of promoting wellness, and there are religiosity groups who teach prayer and meditation. The latter is OK occasionally but can be totally detrimental if it is used continually or in place of traditional medicine and public health work if it ignores these evidence-based ways of working. There is little or no evidence for prayer, some evidence for alternative ways of working [is yoga, aromatherapy], but a lot of evidence for many medications or public health interventions such as weight loss or exercise, blood pressure medication, asthma treatment as examples. There is no point a prayer group praying for others, if they sit around all day praying & fail to exercise as in fact that is hypocritical if they then don't meet the physical activity guidelines & end up themselves overweight, obese, high blood pressure as a result of being sedentary. Exercise in this case is more important than prayer for an individual in my mind and there is considerable evidence in the literature, as there is for blood pressure medicine or diabetes treatment for someone with high blood pressure, overweight and diabetes. So public health prevention work is vitally important as is treatment with medicine for many illnesses such as high blood pressure, overweight or diabetes, so in my mind I don't think you can say one is more important than the other. I consider that the evidence factors about whether there is evidence in the literature is what should be considered when making decisions about prevention or treatment. This is where prayer for prevention or illness lacks credibility as there is little or no evidence, but quite a lot of evidence for public health prevention work or treatment with medicine. I think everyone needs to read evidence and I think prevention is as important as treatment. I don't think one is more so. T-You.