Supplication in prayer is a most powerful tool, even in the hands of simple people. The Midrash tells us that even a person who may not deserve to have their prayers answered or be shown kindness, if they persistently plead for mercy in their prayers, Hashem promises to show them His kindness.
This is supported by the verse from Tehillim (כה, י), which states: כָּל־אָרְחוֹת ה' חֶסֶד וֶאֱמֶת - All the paths of Hashem are mercy and truth. The Midrash explains that Hashem's way is to prioritize mercy over strict judgment. This is also reflected in another verse that places charity before justice, as stated in Tehillim (פט, טו): צֶדֶק וּמִשְׁפָּט מְכוֹן כִּסְאֶךָ חֶסֶד וֶאֱמֶת יְקַדְּמוּ פָנֶיךָ - Charity and justice are the foundation of Your throne; Lovingkindness and truth will precede Your countenance.
We see that in this verse, where Hashem's ways are described, צֶדֶק and חֶסֶד are mentioned before מִשְׁפָּט and אֱמֶת. This demonstrates the precedence of acts of kindness and compassion over "truth", namely rigid justice, in the eyes of Hashem. This is because even if one isn't deserving of Hashem's mercy, if he pleads for it, it will be granted to him due to Hashem's placement of compassion before judgment.
(מִדְרָשׁ תַּנְחוּמָא וַיֵּרָא סִימָן א)
The same idea is mentioned in Tana D'vei Eliahu, where we find that Hashem told Moshe, "You may not fully understand all my attributes, but let me tell you about some of them. When I see people, even if they don't have Torah or good deeds, and there is nothing commendable in their actions or even in the actions of their ancestors, if they just stand and praise me, offering numerous supplications, I will attend to them and double their sustenance. As it says (תְּהִלִּים קב, יח): פָּנָה אֶל־תְּפִלַּת הָעַרְעָר וְלֹא־בָזָה אֶת־תְּפִלָּתָם - He (Hashem) has turned to the prayer of the destitute, and has not spurned their prayer. This implies that even those who are "destitute", emptied of Torah and good deeds, will have their prayers answered if they persistently offer supplications and prayers.
(תָּנָא דְבֵי אֵלִיָּהוּ זוּטָא פ' ו)